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April 20, 2014

Search: . A block of mass 2.50 kg is pushed 2.20 m along a frictionless horizontal table by a constant 16.0-N force directed 25 degrees below the ho

Number of results: 40,107

Physics
A block of mass 3m is placed on a frictionless horizontal surface, and a second block of mass m is placed on top of the first block. The surfaces of the blocks are rough. A constant force of magnitude F is applied to the first block as shown in the figure. (a) Construct free-...
Wednesday, October 17, 2012 at 2:07pm by Brette

Physics.
A block of mass 3m is placed on a frictionless horizontal surface, and a second block of mass m is placed on top of the first block. The surfaces of the blocks are rough. A constant force of magnitude F is applied to the first block. a) Identify the horizontal force that ...
Tuesday, October 16, 2012 at 3:17pm by Kelsey

Physics
A block of mass 3m is placed on a frictionless horizontal surface, and a second block of mass m is placed on top of the first block. The surfaces of the blocks are rough. A constant force of magnitude F is applied to the first block. Assume that the upper block does not slip ...
Monday, September 24, 2012 at 1:35am by Oyster

Physics
Block 1, of mass m1 = 0.650kg , is connected over an ideal (massless and frictionless) pulley to block 2, of mass m2, as shown. For an angle of θ = 30.0∘ and a coefficient of kinetic friction between block 2 and the plane of μ = 0.400, an acceleration of ...
Thursday, October 3, 2013 at 2:55pm by Joe

physics
Block A has a mass of 4.1 kg, and it is on a frictionless surface. A string tied to this mass passes over a frictionless pulley, and is attached to a hanging block (Block B), as shown in the image below. The blocks then accelerate at 2.3 m/s/s. What is the mass of Block B?
Monday, February 8, 2010 at 7:16pm by Anonymous

physics
block a in figure 1 has a mass of 10kg, and block b has a mass of 30 kg. the coefficient of friction between b and the horizontal surface is 0.3. a) what is the mass of block c if block b is moving with an acceleration of 3m/s/s b) what is the tension in each cord when b is ...
Wednesday, January 9, 2013 at 7:43am by flay

Physics 121
Two block are connected by a rope that runs over a pulley. The block on the tables has mass 4kg, the hanging block has mass 2kg, and the pulley has mass 0.5kg and radius 0.25m. Assume that the table is friction-less. If the block are released from the rest, determine their ...
Sunday, May 6, 2012 at 8:13pm by Bob

Physics
A wooden block and a lead ball are connected by a light string that passes over a frictionless pulley. The block has a mass of 6kg and the ball has a mass of 2kg. after they are released from rest, the block will slide along the wooden ramp. a.) which direction will the block ...
Sunday, October 17, 2010 at 8:04pm by Sadie

Physics 121
Two block are connected by a rope that runs over a pulley. The block on the tables has mass 4kg, the hanging block has mass 2kg, and the pulley has mass 0.5kg and radius 0.25m. Assume that the table is friction-less. If the block are released from the rest, determine their ...
Saturday, May 5, 2012 at 9:07pm by Phil

Physics
A block of mass m1 is on top of a block of mass m2. Block 2 is connected by an ideal rope passing through a pulley to a block of unknown mass m3 as shown. The pulley is massless and frictionless. There is friction between block 1 and 2 and between the horizontal surface and ...
Sunday, June 23, 2013 at 7:24pm by Rose

physics
In the Figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.3 kg, block B has a mass of 2.7 kg, and angle č is 26 °. If the blocks are released from rest with the connecting cord taut, what is their total kinetic ...
Monday, March 23, 2009 at 5:21am by chirayu

physics
The density of an unspecified material is 3.27 g/cm (cubed) . if the mass of a block of this material is 10.9kg, what is the volume of the block in cubic meters? A Wooden block is pulled to the right across a level surface at a constant velocity by a force of 47 Newtons, the ...
Thursday, May 24, 2012 at 5:03pm by Jen

physics
block a in figure 1 has a mass of 10kg, and block b and the horizontal surface is 0.3. a) what is the mass of block c if block b is moving with an acceleration of 3m/s/s b) what is the tension in each cord when b is moving with a constant velocity?
Wednesday, January 9, 2013 at 7:35am by flay

Anyone ??? Physics
In the figure below, block 1 of mass m1 = 3.0 kg and block 2 of mass m2 = 1.0 kg are connected by a string of negligible mass. Block 2 is pushed by force F of magnitude 30 N and angle θ = 20°. The coefficient of kinetic friction between each block and the horizontal ...
Friday, October 26, 2012 at 9:47am by Josh36

physics
Block a is moving with a certain acceleration along a frictionless horizontal surface. When a second block B is placed on top of block A, the acceleration of the combined block drops to 1/5 the original value. What is the ratio of the mass of A to the mass of B :
Friday, November 30, 2012 at 7:30am by maihul

Physics help needed
In the figure below, block 1 of mass m1 = 3.0 kg and block 2 of mass m2 = 1.0 kg are connected by a string of negligible mass. Block 2 is pushed by force F of magnitude 30 N and angle θ = 20°. The coefficient of kinetic friction between each block and the horizontal ...
Friday, October 26, 2012 at 3:04am by The master

mechanics
Q2. A block of massmrests on the left edge of a block of larger massM. The coefficient of kinetic friction between the two blocks is , and the surface on which the larger block rests is frictionless. A constant horizontal force of magnitude F is applied to the block of mass m...
Thursday, December 9, 2010 at 3:45am by sana

Physics- springs
Block A has a mass 1.00kg, and block B has a mass 3.00 kg. the blocks are forced together, compressing a spring S between them; then the system is released from rest on a level, frictionless surface. The spring which egligible mass, is not fastened to either block and drops to...
Wednesday, April 25, 2012 at 11:54pm by David E.

Physics
A 2.50g bullet, traveling at a speed of 425m/s, strikes the wooden block of a ballistic pendulum. The block has a mass of 270g (a) find the speed of the bullet/block combination immediately after the collision (b) how high does the combination rise above its initial position...
Friday, March 2, 2007 at 2:53am by CJ

Physics
A block P of mass 2.75 kg is lying on a rough inclined plane of angle č=0.87 radians. Block P is attached via a model string that passes over a model pulley to a second block Q of unknown mass M kg hanging vertically. The coefficient of static friction between the block P and ...
Tuesday, March 6, 2012 at 8:31am by Anonymous

physics
Block A (mass 40 kg) and block B (mass 80 kg) are connected by a string of negligible mass as shown in the figure. The pulley is frictionless and has a negligible mass. If the coefficient of kinetic friction between block A and the incline is μk = 0.27 and the blocks are ...
Friday, November 30, 2012 at 2:24pm by Diego

physics
Block A (mass 40 kg) and block B (mass 80 kg) are connected by a string of negligible mass as shown in the figure. The pulley is frictionless and has a negligible mass. If the coefficient of kinetic friction between block A and the incline is μk = 0.27 and the blocks are ...
Friday, November 30, 2012 at 2:58pm by Diane

Physics
A block of mass m = 2.00 kg rests on the left edge of a block of mass M = 8.00 kg. The coefficient of kinetic friction between the two blocks is 0.300, and the surface on which the 8.00- kg block rests is frictionless. A constant horizontal force of magnitude F = 10.0 N is ...
Wednesday, July 25, 2012 at 8:24pm by Zac

physics
In the Figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.3 kg, block B has a mass of 2.7 kg, and angle č is 26 °. If the blocks are released from rest with the connecting cord taut, what is their total kinetic ...
Sunday, March 22, 2009 at 5:11pm by nicks

high school physics static friction
The system shown below is in equilibrium. Using the fact that block A is placed on a table, has a normal force of 40.2 N and it is not moving, what is the coefficient of static friction on block A? I know you can't answer this but if you have any suggestions: Calculate the ...
Wednesday, December 8, 2010 at 9:24pm by Jess

Physics
A bullet with a mass of mb= 0.05 kg is speeding toward a block of mass m= 10kg. The bullet is moving at vb= 200m/s and the block is at rest. the bullet collides with he block and knocks the block over the edge. the edge is a height h= 0.5m above ground. how far from he edge ...
Thursday, February 3, 2011 at 9:33pm by Scott

Physics
In the drawing, the weight of the block on the table is 405. N and that of the hanging block is 191. N. Ignore friction, the mass of the rope, and the mass of the pulley. Find the acceleration of the two block system in m/s2.
Wednesday, December 19, 2012 at 4:48pm by Toung

Physics
Two blocks, (Mass of block 1 = 2.3kg, Mass of block 2 = 1.2kg), are in contact on a frictionless table. If a horizontal force of 3.2N is applied to the larger block, what is the acceleration of the smaller block. Describe all external forces that are acting on the two blocks
Sunday, November 25, 2012 at 5:01pm by Tim

Physics
Two blocks, (Mass of block 1 = 2.3kg, Mass of block 2 = 1.2kg), are in contact on a frictionless table. If a horizontal force of 3.2N is applied to the larger block, what is the acceleration of the smaller block. Describe all external forces that are acting on the two blocks
Sunday, November 25, 2012 at 9:05pm by Tim

physics
A 4 kg wooden block rest on a table. the coefficient of friction between the block and the table is .40. a 5kg mass is attached to the block by a horizontal string passed over a frictionless pulley of neglible mass what is the acceleration of the block when the 5 kg mass is ...
Tuesday, February 2, 2010 at 7:36pm by Tori carr

physics
A heavy wooden block rests on a flat table and a high-speed bullet is fired horizontally into the block, the bullet stopping in it. How far will the block slide before coming to a stop? The mass of the bullet is 10.5 g, the mass of the block is 10.5 kg the bullet’s impact ...
Wednesday, March 10, 2010 at 12:58pm by Anonymous

physics
A heavy wooden block rests on a flat table and a high-speed bullet is fired horizontally into the block, the bullet stopping in it. How far will the block slide before coming to a stop? The mass of the bullet is 10.5 g, the mass of the block is 10.5 kg the bullet’s impact ...
Wednesday, March 10, 2010 at 2:27pm by esther

physics
In the Figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.3 kg, block B has a mass of 2.7 kg, and angle č is 26 °. If the blocks are released from rest with the connecting cord taut, what is their total kinetic ...
Saturday, March 21, 2009 at 7:41pm by sweety

Physics
a 2.0 kg block moving at 8 m/s on a frictionless surface collides elastically with a block at rest. The first block moves in the same direction at 2 m/s. What is the second block's mass?
Wednesday, April 3, 2013 at 10:10pm by Henry

AP Physics
Liam fires a bullet into a block suspended by two cables, embedding the bullet in the block. The mass of the bullet is 5g and the mass of the block is 1g. 1) If the maximum height of the block is ,h, is 35 cm, how fast was the bullet originally moving? (can you explain the ...
Monday, December 5, 2011 at 4:22pm by Hester

physics
A metal block of mass 5kg lies on a rough horizontal platform.If a horizontal force of 8N applied to the block through its centre of mass just slides the block on the platform,then the coefficient of limiting friction between the block and the platform is
Sunday, February 24, 2013 at 12:18pm by Kenny

Physics - Newtons laws
A block (mass m1 = 8kg) is moving on an inclined plane, coefficient of kinetic friction of 0.45, whose angle is 30degrees. This block is connected to a second block (mass m2 = 22kg) by a cord that passes over a small frictionless pulley. Find the acceleration of each block and...
Friday, February 24, 2012 at 1:27am by Anonymous

Physics
A bullet with a mass of 4.0 g and a speed of 650 m/s is fired at a block of wood with a mass of 9.7×10−2 kg. The block rests on a frictionless surface, and is thin enough that the bullet passes completely through it. Immediately after the bullet exits the block, the ...
Tuesday, August 3, 2010 at 11:26pm by Todd

Physics
A heavy wooden block rests on a flat table and a high-speed bullet is fired horizontally into the block, the bullet stopping in it. How far will the block slide before coming to a stop? The mass of the bullet is 9.5 g, the mass of the block is 10.5 kg, the bullet's impact ...
Wednesday, November 6, 2013 at 7:34pm by jonathan

Physics
A wooden block of mass 29.0 kg sits on a horizontal table. A wire of negligible mass is attached to the right side of the block and goes over a pulley (also of negligible mass, and frictionless), where it is allowed to dangle vertically. When a mass of 15.5 kg is attached to ...
Friday, January 20, 2012 at 9:46pm by Bob

physics
In the Figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.3 kg, block B has a mass of 2.7 kg, and angle č is 26 °. If the blocks are released from rest with the connecting cord taut, what is their total kinetic ...
Sunday, March 22, 2009 at 12:05am by sweety

Physic
A bullet with a mass of 4.0 g and a speed of 736 m/s is fired at a block of wood with a mass of 0.075 kg. The block rests on a frictionless surface, and is thin enough that the bullet passes completely through it. Immediately after the bullet exits the block, the speed of the ...
Friday, October 19, 2012 at 12:12pm by Hey

Physics
A block of mass m1 = 4.1 kg rests on a frictionless horizontal surface. A second block of mass m2 = 1.7 kg hangs from an ideal cord of negligible mass that runs over an ideal pulley and then is connected to the first block. The blocks are released from rest. (a) Find the ...
Monday, January 25, 2010 at 12:27am by Angie

physics
Two cubic blocks are in contact, resting on a frictionless horizontal surface. The block on the left has a mass of mL = 6.70 kg, and the block on the right has a mass of mR = 18.4 kg. A force of magnitude 112 N is applied to the left face of the left block, toward the right ...
Sunday, October 31, 2010 at 6:50pm by caroline

Physics
In Case A the mass of each block is 4.8 kg. In Case B the mass of block 1 (the block behind) is 9.6 kg, and the mass of block 2 is 4.8 kg. No frictional force acts on block 1 in either Case A or Case B. However, a kinetic frictional force of 9.4 N does act on block 2 in both ...
Sunday, October 14, 2012 at 3:03am by robert

Physics
Two cubic blocks are in contact, resting on a frictionless horizontal surface. The block on the left has a mass of mL = 6.70 kg, and the block on the right has a mass of mR = 18.4 kg. A force of magnitude 112 N is applied to the left face of the left block, toward the right ...
Friday, May 25, 2012 at 5:00pm by Mary

physics
A block of mass m = 2.00 kg slides down a 30.0° incline which is 3.60 m high. At the bottom, it strikes a block of mass M = 7.20 kg which is at rest on a horizontal surface Determine the speeds of the two blocks after the collision. lighter block = heavier block = what would ...
Thursday, March 24, 2011 at 3:53pm by Haley

Physics
Block A of mass 115 kg rests on a table with which it has a coefficient of limiting friction of 0.37. A light cord passes horizontally from Block A, without slipping, over a pullet of mass 34kg, radius 120 mm and radius of gyration 84mm, and down vertically of block B of mass ...
Sunday, August 19, 2012 at 2:37am by Alex

physics
block A (mass 2.04kg) rests on a tabletop. It is connected by a horizontal cord passing over a light, frictionless pulley to a hanging block B (mass 3.00kg ). The coefficient of kinetic friction between block A and the tabletop is 0.215. After the blocks are released from ...
Thursday, October 11, 2012 at 8:27pm by george

physics
A block of mass m = 3.6 kg, moving on a frictionless surface with a speed vi=9.3m/s makes a perfectly elastic collision with a block of mass M at rest. After the collision, the 3.6 kg block recoils with a speed of vf=2.7m/s. In Figure 8.2, the speed of the block of mass M ...
Friday, November 16, 2012 at 9:07pm by terry

physics
In the Figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.3 kg, block B has a mass of 2.7 kg, and angle č is 26 °. If the blocks are released from rest with the connecting cord taut, what is their total kinetic ...
Sunday, March 22, 2009 at 6:33am by sweety

physics
In the Figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.3 kg, block B has a mass of 2.7 kg, and angle č is 26 °. If the blocks are released from rest with the connecting cord taut, what is their total kinetic ...
Sunday, March 22, 2009 at 10:21pm by nirali

PHYSICS HELP MEEE SO CONFUSED
Liam fires a bullet into a block suspended by two cables, embedding the bullet in the block. The mass of the bullet is 5g and the mass of the block is 1g. 1) If the maximum height of the block is ,h, is 35 cm, how fast was the bullet originally moving? (can you explain the ...
Monday, December 5, 2011 at 5:02pm by Confused

Physics
A block of mass M resting on a 21.5° slope is shown. The block has coefficients of friction μs=0.605 and μk=0.344 with the surface. It is connected via a massless string over a massless, frictionless pulley to a hanging block of mass 2.57 kg. What is the minimum mass...
Monday, November 1, 2010 at 1:20pm by Bala

Physics
A block of mass M resting on a 21.5° slope is shown. The block has coefficients of friction μs=0.605 and μk=0.344 with the surface. It is connected via a massless string over a massless, frictionless pulley to a hanging block of mass 2.57 kg. What is the minimum mass...
Monday, November 1, 2010 at 3:31pm by Bala

Physics
A block of mass M resting on a 21.5° slope is shown. The block has coefficients of friction μs=0.605 and μk=0.344 with the surface. It is connected via a massless string over a massless, frictionless pulley to a hanging block of mass 2.57 kg. What is the minimum mass...
Thursday, November 4, 2010 at 8:32pm by Bella

physics
A bullet with a mass 0.05kg is speeding toward a block of mass 10kg. the bullet is initially moving with a velocity of 200m/s while the block is initially at rest....The bullet collides with the block, sticking inside, and knocks the block horizontally of the edge of a cliff. ...
Tuesday, January 27, 2009 at 9:28pm by maria

physics
A block with mass m =7.3 kg is hung from a vertical spring. When the mass hangs in equilibrium, the spring stretches x = 0.21 m. While at this equilibrium position, the mass is then given an initial push downward at v = 4.5 m/s. The block oscillates on the spring without ...
Monday, February 6, 2012 at 1:28pm by Chad

physics
A Block has a mass of 50.0 kilograms. the coefficient of static friction between the block and the level floor on which it rests is 0.428 A horizontal force of 618 newtons is applied to the block to the right, as shown. will the block move?
Thursday, May 24, 2012 at 1:30pm by Jen

physics
A metal block of mass m is attached to the ceiling by a spring. Connected to the bottom of this block is a string that supports a second block of the same mass m, as shown in the figure . The string connecting the two blocks is now cut.What is the net force acting on the two-...
Sunday, October 11, 2009 at 3:33pm by kam

Mechanical engineering
A bullet of mass 50 grams is fired horizontally into a wooden block of mass 0.2kg. The wodden block is suspended from the ceiling by a long string as shown in the diagram. After impact the bullet is embedded in the block and bullet and the block swing together until the block ...
Saturday, April 19, 2008 at 9:22pm by ibroo

Physics
A block of mass m 1 sits at rest on a table over a hole in the table. From below the table, a bullet of mass m 2 is fired vertically upwards into the block. The bullet imbeds itself in the block. The block and bullet rise to a maximum height h. What is the bullet’s initial ...
Monday, August 6, 2012 at 8:34pm by Jason

Physics
Block A has a mass of 2.60 kg and rests on a smooth (frictionless) table and is connected to block B, which has a mass of 2.40 kg, after passing over an ideal pulley, as shown. Block B is released from rest. What is the acceleration of the masses?
Sunday, September 30, 2012 at 11:15pm by Anthony

physics
A block of ice of mass 4.10 kg is placed against a horizontal spring that has force constant k = 210 N/m and is compressed a distance 2.60×10−2 m. The spring is released and accelerates the block along a horizontal surface. You can ignore friction and the mass of the ...
Thursday, October 7, 2010 at 11:37am by ami

physics
A block is released on an inclined plane from a height of 1m. There is friction (static and kinetic =.4) and the mass of the block is 5 kg, the mass of the pulley is 1 kg and it has a radius of 5 cm. The slope of the incline is 30 degrees. Find the acceleration of the block as...
Friday, November 18, 2011 at 4:15pm by Rachael

physics
A block of mass M connected to an untstretched horizontal spring of spring constant k is hit by a bullet of mass m which has a velocity V just before the collision. The bullet stays in the block. The coefficient of friction between the block and surface is b. Explain how do ...
Thursday, April 21, 2011 at 3:39pm by Peter

physics
Block A has a mass of 6.07 kg and is on a rough incline of 12.5o to the horizontal. Block B has a mass of 4.82 kg and the coefficient of kinetic friction between Block A and the plane is 0.268. What is the acceleration of the blocks? What is the tension in the string? can ...
Wednesday, November 9, 2011 at 8:50pm by Yul

physics
, block A (mass 2.04)kg rests on a tabletop. It is connected by a horizontal cord passing over a light, frictionless pulley to a hanging block B (mass 3.00 )kg. The coefficient of kinetic friction between block A and the tabletop is 0.215. After the blocks are released from ...
Wednesday, September 12, 2012 at 11:36pm by george

Physics
calculate the acceleration of this system, assuming that there are no frictional forces between the table and Block A. Block A is sitting on a table connected by a rope to a pulley system and Block B is hanging off the table connected to the rope from the pulley system. Mass ...
Tuesday, November 19, 2013 at 10:39pm by JR

Physics - URGENT
A small block of mass 5 kg initially rests on a track at the bottom of a circular, vertical loop-the-loop, which has a radius of 0.8 m. The surface contact between the block and the loop is frictionless. A bullet of mass 0.7 kg strikes the block horizontally with initial speed...
Thursday, January 15, 2009 at 11:21pm by Richard

physics
A block of mass 7.33 kg in outerspace is moving at 1.72 m/s with no external forces acting on it. After an explosion, the block is split into two parts both having mass equal to half the mass of the original block. The explosion supplies the two masses with an additional 16.7 ...
Sunday, October 18, 2009 at 4:09pm by Anonymous

Physic
The figure below shows a block of mass m resting on a 20ˇă slope. The block has coefficients of friction ¦Ěs = 0.73 and ¦Ěk = 0.53 with the surface. It is connected via a massless string over a massless, frictionless pulley to a hanging block of mass 2.0 kg.
Monday, March 3, 2014 at 7:41pm by Jason

Physics
A block is suspended from the end of a spring. An external force holds the block so that initially the spring is not stretched or compressed. When the block is released, it oscillates up and down between positions A and B. If the mass of the block is 0.5 kg and the spring ...
Monday, February 20, 2012 at 7:21pm by Mary

physics
A pendulum with a bob of mass 30g is lifted to height of 5.00cm above its lowest point and allowed to fall so that collides elastically with a block of mass 20g that rests on a smooth horizontal floor. The block stops 5 seconds after the collision. Assuming no sound is ...
Sunday, July 28, 2013 at 10:22am by Eryy

Physics
A bullet of mass is fired horizontally with speed at a wooden block of mass resting on a frictionless table. The bullet hits the block and becomes completely embedded within it. After the bullet has come to rest within the block, the block, with the bullet in it, is traveling ...
Monday, October 18, 2010 at 12:55pm by Eden

physics
Block 1, of mass1 = 0.550kg , is connected over an ideal (massless and frictionless) pulley to block 2, of mass2 , as shown. For an angle of = 30.0 and a coefficient of kinetic friction between block 2 and the plane of = 0.300mu(kinetic friction), an acceleration of magnitude...
Tuesday, October 23, 2012 at 7:25pm by Samantha

Physics
In the figure below, two blocks are connected over a pulley. The mass of block A is 12 kg, and the coefficient of kinetic friction between A and the incline is 0.22. Angle θ is 30°. Block A slides down the incline at constant speed. What is the mass of block B?
Monday, February 21, 2011 at 5:40pm by Ben

physics
A block of wood with a mass of 4.62 kg sits on the edge of a table that is 0.99 m tall. A bullet with a mass of 70.5 g traveling with a speed of 450 m/s is shot into the block and is lodged in it. Assuming that no energy is lost to friction, how far from the table will the ...
Sunday, February 9, 2014 at 7:12pm by dean

physics
A light rope is attached to a block with a mass of 6 kg that rests on a horizontal, frictionless surface. THe horizontal rope passes over a frictionless, massless pulley, and a block of mass m is suspended from the other end. When the blocks are released, the tension in the ...
Thursday, November 16, 2006 at 3:42pm by Christina

physics
A block of unknown mass is attached to a spring with a spring constant of 6.00 N/m and undergoes simple harmonic motion with an amplitude of 12.0 cm. When the block is halfway between its equilibrium position and the end point, its speed is measured to be 33.0 cm/s a)Calculate...
Monday, April 27, 2009 at 11:19am by Jessi

physics
A bullet of mass 12.4 g is fired into an initially stationary block and comes to rest in the block. The block, of mass 1.02 kg, is subject to no horizontal external forces during the collision with the bullet. After the collision, the block is observed to move at a speed of 4....
Thursday, March 29, 2012 at 5:57pm by Sarah

physics
A bullet of mass 11.2 g is fired into an initially stationary block and comes to rest in the block. The block, of mass 1.01 kg, is subject to no horizontal external forces during the collision with the bullet. After the collision, the block is observed to move at a speed of 4....
Monday, April 30, 2012 at 9:12pm by Anonymous

Physics
A block with a mass of 2.5 kg on a frictionless track collides and sticks to a stationary block with a mass of 1.75 kg and the two more together at a velocity of 3.5 m/s. What was the velocity of the first block? A. 2.5 m/s B. 7.5 m/s C. 6.0 m/s D. 0.6 m/s E. 0 m/s pls show ...
Monday, December 3, 2012 at 12:06am by john

Physics
Two blocks are positioned as shown below. block A has a mass of 15 kg and hangs on one end of a cable that passes over a frictionless and massless pulley. The other end of the pulley is attatched to block B which has a mass of 10 kg. Block B rests on an incline which has an ...
Monday, February 20, 2012 at 9:36pm by Eastern Illinois University

Physics
Two blocks are positioned as shown below. block A has a mass of 15 kg and hangs on one end of a cable that passes over a frictionless and massless pulley. The other end of the pulley is attatched to block B which has a mass of 10 kg. Block B rests on an incline which has an ...
Monday, February 20, 2012 at 9:38pm by Eastern Illinois University

Physics
A block of mass 17.9 kg supported by a vertical massless cable is initially at rest. The block is then pulled upward with a constant acceleration of 2.01 m/s2. What is the tension in the cable? What is the magnitude of the net force acting on the mass? What is the speed of the...
Wednesday, February 13, 2013 at 12:42pm by Jessica

physicsssss
two blocks are connected over a pulley. The mass of block A is 10 kg and the coefficient of kinetic friction between A and the incline is 0.24. Angle čof the incline is 30°. Block A slides down the incline at constant speed. What is the mass of block B?
Sunday, October 3, 2010 at 4:49pm by ashley

Physics
block a 10 kg is connected to block b 20 kg by a mass less string on a horizontal surface (coefficient of kinetic friction 0.1). block b is connected by another string to a hanging mass M through a mass less pulley. what is the minimun value of M that will make the system move?
Thursday, August 15, 2013 at 2:31am by Anthony

Physics
A 4.1 kg block is attached to a spring with a force constant of 550 N/m , as shown in the figure. Find the work done by the spring on the block as the block moves from A to B along paths 1 and 2. W=? How do your results depend on the mass of the block? Specifically, if you ...
Monday, October 12, 2009 at 7:55pm by Jenna

physics
As shown in the figure, a block of mass M1 = 0.470 kg is initially at rest on a slab of mass M2 = 0.850 kg, and the slab is initially at rest on a level table. A string of negligible mass is connected to the slab, runs over a frictionless pulley on the edge of the table, and ...
Monday, October 17, 2011 at 9:15am by Jimmy

cary collage
"A 2.5-kg block slides down a 25 degree inclined plane with constant acceleration. The block starts from rest at the top. At the bottom, its velocity reaches 0.65 m/s. The length of the incline is 1.6m. a) What is the acceleration of the block? b) What is the coefficient of ...
Monday, September 27, 2010 at 12:34am by sahan

physics
A bullet with mass m = 5.21 g is moving horizontally with a speed v=367 m/s when it strikes a block of hardened steel with mass M = 14.8 kg(initially at rest). The bullet bounces o the block in a perfectly elastic collision. (a) What is the speed (m/s) of the block immediately...
Thursday, December 15, 2011 at 12:56pm by Sarah

physics
n outer space, far from other objects, block 1 of mass 40 kg is at position (7,9,0) and block 2 of mass 1000 kg is at position (17,13,0) Since the z components of position are zero, the (vector) gravitational force acting on block 2 due to block 1 will be (-21.359e-9,-8.54198e...
Sunday, February 5, 2012 at 11:41pm by mo

Physics
The sketch shows a mobile in equilibrium. Each of the rods is 0.16 m long, and each hangs from a supporting string that is attached one fourth of the way across it. The mass of each rod is 0.10 kg. The mass of the strings connecting the blocks to the rods is negligible. What ...
Sunday, June 10, 2012 at 7:14pm by Kate

Physics
A block has mass 800 g, whose is fasten to a spring with spring constant k is 70 N/m. The block is pulled a distance x = 15 cm from its equilibrium position at x = 0 on a frictionless surface and released from rest at t = 0. (a) What force does the spring exert on the block ...
Sunday, December 18, 2011 at 8:38am by Dia

physics
A bullet A of mass 2kg travelling at 200m/s emblezes itself in a wooden block of mass 9kg moving in the opposite direction. At 20m/s. Calculate the velocity of the block when the bullet comes to rest inside the block. And what principle is used in the direction
Tuesday, March 18, 2014 at 3:59am by ogboyeb

physics
The coefficient of static friction is 0.604 between two blocks. The coefficient of kinetic friction between the lower block and the floor is 0.115. Force F causes both blocks to cross a distance of 3.93 m, starting from rest. What is the least amount of time in which the ...
Sunday, September 27, 2009 at 3:11pm by Anonymous

College Physics (repost)
A 4.1 kg block is attached to a spring with a force constant of 550 N/m , as shown in the figure. Find the work done by the spring on the block as the block moves from A to B along paths 1 and 2. W=? How do your results depend on the mass of the block? Specifically, if you ...
Monday, October 12, 2009 at 10:33pm by Jenna

Physics
A 34-g bullet traveling at 120m/s embeds itself in a wooden block on a smooth surface. The block then slides toward a spring and collides with it. The block compresses the spring (k=100 N/m) a maximum of 1.25 cm. Calculate the mass of the block of wood.
Thursday, January 5, 2012 at 9:39am by Zach

Physics
A 34-g bullet traveling at 120m/s embeds itself in a wooden block on a smooth surface. The block then slides toward a spring and collides with it. The block compresses the spring (k=100 N/m) a maximum of 1.25 cm. Calculate the mass of the block of wood.
Thursday, January 5, 2012 at 9:39am by Brian

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