Wednesday
April 16, 2014

Search: 20 kg. mass block 1.4 acceleration .28 co-friction

Number of results: 96,737

Physics
Suppose a hanging 1.0 kg lab mass is attached to a 4.0 kg block on the table. a. If the coefficient of kinetic friction, uk is 0.20, what is the acceleration of the block? b. What would be the minimum value of the coefficient of static friction, Us, in order for the block to ...
Friday, January 28, 2011 at 6:07pm by jdajaljk

Physics
A 5.1- kg concrete block rests on a level table. A 3.4- kg mass is attached to the block by a string passing over a light, frictionless pulley. If the acceleration of the block is measured to be 1.3 m/s2, what is the coefficient of friction between the block and the table? ...
Monday, March 24, 2014 at 5:06pm by Alex

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 5 kg block is placed on top of a 10 kg block as shown above. A horizontal force of 45 N is applied to the 10 kg block, while the 5 kg block is tied to the wall. The coefficient of kinetic friction between the moving surfaces is 0.20. Determine (a) the tension in the string ...
Sunday, February 23, 2014 at 2:39am by Chrxeyshthoufov

Physics
Consider the diagram of the box and bucket. If the coefficient of static friction is 0.5 and the coefficient of kinetic friction is 0.3, find the maximum mass of the bucket in order for the system to be in static equilibrium. If the block was given a slight nudge to get it ...
Saturday, January 1, 2011 at 6:47pm by Caitlin

Physics
A block of mass m1 is connected to an empty bucket of mass 1.35 kg by a cord over a frictionless pulley. The coefficient of the static friction between the table and the block is 0.45 and the coefficient of kinetic friction between the table and the block is 0.32. Water is ...
Monday, May 2, 2011 at 3:40pm by Mawuli

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
A wooden block with mass 0.26{\rm kg} rests on a horizontal table, connected to a string that hangs vertically over a friction-less pulley on the table's edge. From the other end of the string hangs a 0.20{\rm kg} mass. What minimum coefficient of static friction \mu _{{\rm s...
Thursday, October 18, 2012 at 4:52pm by Nichole

physics
A block M1 of mass 16.5 kg sits on top of a larger block M2 of mass 26.5 kg which sits on a flat surface. The kinetic friction coefficient between the upper and lower block is 0.425. The kinetic friction coefficient between the lower block and the flat surface is 0.125. A ...
Saturday, February 22, 2014 at 11:03am by Mimi

Anyone ??? Physics
In the figure below, block 1 of massm1 = 3.0 kgand block 2 of massm2 = 1.0 kgare connected by a string of negligible mass. Block 2 is pushed by force F of magnitude 30 N and angleθ = 20.The coefficient of kinetic friction between each block and the horizontal ...
Friday, October 26, 2012 at 9:47am by Josh36

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 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

PHYSICS
A block with mass m1 = 9.0 kg is on an incline with an angle θ = 32.0 with respect to the horizontal. For the first question there is no friction, but for the rest of this problem the coefficients of friction are: μk = 0.28 and μs = 0.308. To keep the mass ...
Saturday, February 2, 2013 at 4:10am by HIBA

Dynamics of Rigid Bodies
The system of blocks A and B and two pulleys C and D is assembled as shown in the figure. Neglecting friction in and the mass of the pulleys, and assuming that the whole system is initially at rest, determine the acceleration of block A. The coefficient of kinetic friction ...
Wednesday, April 10, 2013 at 6:37am by Anonymous

Physics
A 60 kg block slides along the top of a 100 kg block with an acceleration of 3.0 m/s2 when a horizontal force F of 320 N is applied. The 100 kg block sits on a horizontal frictionless surface, but there is friction between the two blocks. (a) Find the coefficient of kinetic ...
Wednesday, October 12, 2011 at 5:43pm by Henry

Physics
A 5.7- kg concrete block rests on a level table. A 4.0- kg mass is attached to the block by a string passing over a light, frictionless pulley. If the acceleration of the block is measured to be 1.0 m/s2, what is the coefficient of friction between the block and the table?
Tuesday, February 21, 2012 at 5:09pm by Steve

Physics
A 5.7- kg concrete block rests on a level table. A 4.0- kg mass is attached to the block by a string passing over a light, frictionless pulley. If the acceleration of the block is measured to be 1.0 m/s2, what is the coefficient of friction between the block and the table?
Tuesday, February 21, 2012 at 5:16pm by Steve

Physics
A 5.7- kg concrete block rests on a level table. A 4.0- kg mass is attached to the block by a string passing over a light, frictionless pulley. If the acceleration of the block is measured to be 1.0 m/s2, what is the coefficient of friction between the block and the table?
Tuesday, February 21, 2012 at 5:05pm by Eva

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
the coefficient of starting friction for wood on wood is 0.55. What is the force of friction of a wood block of mass 3.5 kg being pulled on a wood floor? i think i use the formula F=mMA where F is the force needed to move a solid from rest, m=coefficient of friction, M=mass of...
Sunday, October 17, 2010 at 4:16pm by courtney

physics
A block of mass 0.8 kg is dragged along a level surface at constant velocity by a hanging block of mass 0.2 kg as shown in fig. 2.29. Find tension in the string and acceleration of the system, if the coefficient of friction between the block and the surface is 0.045 with ...
Friday, June 14, 2013 at 2:35am by Ashima

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
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
A block of mass m1 = 4.80 kg sits on top of a second block of mass m2 = 15.6 kg, which in turn is on a horizontal table. The coefficients of friction between the two blocks are s = 0.300 and k = 0.100. The coefficients of friction between the lower block and the rough table ...
Saturday, October 31, 2009 at 2:02pm by Annie

Physics
A block of mass 5.53 kg lies on a frictionless horizontal surface. The block is connected by a cord passing a. over a pulley to another block of mass 2.25 kg which hangs in the air. Assume the cord to be light (massless and weightless) and unstretchable and the the pulley to ...
Friday, February 21, 2014 at 8:05pm by Emeera

Physics
A string going over a massless frictionless pulley connects two blocks of masses 6.4 kg and 13 kg. As shown on the picture below, the 6.4 kg block lies on a 32◦ incline; the coefficient of kinetic friction between the block and the incline is μ= 0.3. The 13 kg block...
Friday, February 21, 2014 at 8:36pm by mallak

Physics
A string going over a massless frictionless pulley connects two blocks of masses 6.4 kg and 13 kg. As shown on the picture below, the 6.4 kg block lies on a 32◦ incline; the coefficient of kinetic friction between the block and the incline is μ= 0.3. The 13 kg block...
Thursday, March 6, 2014 at 3:12pm by Emeera

Physics 1
A 50.0-kg block and 100-kg block are connected by a string as in Figure P8.36. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between the 50-kg block and incline is 0.250. Determine the change in the kinetic energy of the 50-kg block as ...
Thursday, October 20, 2011 at 9:00pm by Anonymous

Physics-Mechaincs
The suspended 2.29 kg mass on the right is moving up, the 1.3 kg mass slides down the ramp, and the suspended 7.7 kg mass on the left is moving down. There is friction between the block and the ramp. u=0.15 The acceleration of gravity is 9.8 m/s2 . The pulleys are massless and...
Friday, September 24, 2010 at 4:57pm by Genevieve

physics
A 4-kg block is connected by means of a massless rope to a 2-kg block in the figure. If the coeficient of sliding friction between the 4 kg mass and the table is 0.150, find the acceleration of the system, and the tention in the connecting cable.
Tuesday, November 15, 2011 at 3:24pm by Anonymous

physics
A block of wood of mass 6.0 kg slides along a skating rink at 12.5 m/s^2 [w] . The block slides onto a rough section of ice that exerts a force of 30 N force of friction on the block of wood. The acceleration of the block of wood is 5.0 m/s^2 [E] and it takes 2.5s to stop. How...
Tuesday, March 27, 2012 at 11:18pm by Isabella

physics
A block of wood of mass 6.0 kg slides along a skating rink at 12.5 m/s^2 [w] . The block slides onto a rough section of ice that exerts a force of 30 N force of friction on the block of wood. The acceleration of the block of wood is 5.0 m/s^2 [E] and it takes 2.5s to stop. How...
Tuesday, March 27, 2012 at 11:20pm by Isabella

physics
A 2.09 kg block is placed on top of a 10.9 kg block. A horizontal force of F = 63.3 N is applied to the 10.9 kg block, and the 2.09 kg block is tied to the wall. The coefficient of kinetic friction between all moving surfaces is 0.117. There is friction both between the masses...
Sunday, October 10, 2010 at 12:42am by shel

physics
A 4.0-kg block is stacked on top of a 12.0-kg block, which is accelerating along a horizontal table at a = 5.2m/s2 . Let u=uk=us. (a) What minimum coefficient of friction u between the two blocks will prevent the 4.0-kg block from sliding off? (b) If u is only half this ...
Tuesday, November 20, 2012 at 2:12pm by Anonymous

physics
A block with mass m=6.00kg slides down a surface inclined at 37 to the horizontal. The coefficient of kinetic friction is 0.20. A string attached to the block is wrapped around a flywheel on a fixed axis as seen in the figure. The flywheel has mass 25.0 kg and moment of ...
Wednesday, May 1, 2013 at 3:11pm by allison

physics
A block of mass 3.62 kg lies on a frictionless horizontal surface. The block is connected by a cord passing over a pulley to another block of mass 7.8 kg which hangs in the air, as shown. Assume the cord to be light (massless and weightless) and unstretchable and the pulley to...
Thursday, November 15, 2012 at 4:28pm by alice

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 block of mass m1 = 4.90 kg sits on top of a second block of mass m2 = 14.5 kg, which in turn is on a horizontal table. The coefficients of friction between the two blocks are s = 0.300 and k = 0.100. The coefficients of friction between the lower block and the rough table ...
Saturday, November 16, 2013 at 6:27pm by Tom

physics
The coefficient of static friction between a block and a horizontal floor is 0.37, while the coefficient of kinetic friction is 0.10. The mass of the block is 3.8 kg and it is initially at rest. Once the block is sliding, if you keep pushing on it with the same minimum ...
Sunday, November 21, 2010 at 12:37pm by anonymous

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
Two blocks are stacked one on top of the other. The coefficient of friction between the two blocks is 0.20, and the coefficient of friction between the bottom block and the floor is 0.10. What is the max force you can apple to the bottom block such that the top block does not ...
Sunday, July 17, 2011 at 10:46pm by Capreeca

physics
A block of ice at 0C whose mass initially is m = 48.4 kg slides along a horizontal surface, starting at a speed vo = 4.91 m/s and finally coming to rest after traveling a distance d = 12.28 m. Compute the mass of ice melted as a result of the friction between the block and ...
Sunday, April 15, 2012 at 9:43pm by anonymous

Physics Please check my answer
Okay, so I've figured this much out on my own, I just need help with the next part. It's a two block system with a friction of .20 a hanging mass of 7.5 kg and mass on the table at 10 kg. I got 3.08 m/s^2 for the acceleration and I got 22.8 N for the tension in the rope. This ...
Saturday, January 11, 2014 at 2:23pm by unknown

Physics
A 6.40 kg block rests on a 12.5 kg block as shown in the diagram. The interface between the lower mass and the table is frictionless, but there is friction (static friction μS and kinetic friction μK) between the two blocks. A horizontal force F r acts on the UPPER ...
Sunday, February 24, 2013 at 12:12pm by Meder

Physics
A block of mass m = 5.9 kg is pulled up a = 21 incline as in the figure with a force of magnitude F = 34 N. (a) Find the acceleration of the block if the incline is frictionless. 1 Your response differs from the correct answer by more than 10%. Double check your ...
Friday, October 7, 2011 at 8:01pm by Imani

physics
A block of mass m1 = 28 kg rests on a wedge of angle θ = 53∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
Tuesday, January 28, 2014 at 2:27pm by sel

Physics
A block of mass m1 = 28 kg rests on a wedge of angle θ = 53∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
Tuesday, January 28, 2014 at 2:56pm by sel

PHYSICS
A block of mass m1 = 28 kg rests on a wedge of angle θ = 53∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
Tuesday, January 28, 2014 at 9:05pm by sel

Physics
A block of mass 12 kg starts from rest and slides a distance of 8 m down an inclined plane making an angle of 40◦ with the horizontal. The coefficient of sliding friction between block and plane is 0.4. The acceleration of gravity is 9.8 m/s^2 What is the net force ...
Monday, January 28, 2013 at 6:47pm by Murry

physics
A block of mass m1 = 28 kg rests on a wedge of angle θ = 47∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
Tuesday, October 8, 2013 at 3:06pm by radjish

physics
A block of mass m1 = 28 kg rests on a wedge of angle θ = 47∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
Tuesday, October 8, 2013 at 3:29pm by radjish

physics
A block of mass m1 = 28 kg rests on a wedge of angle θ = 47∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
Tuesday, October 8, 2013 at 5:47pm by Anonymous

PHYSICS
A block of mass m1 = 28 kg rests on a wedge of angle θ = 47∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
Wednesday, October 9, 2013 at 5:38am by matt

physics
A block of mass m1 = 28 kg rests on a wedge of angle θ = 47∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
Wednesday, October 9, 2013 at 9:56am by matt

physics
A block of mass m1 = 28 kg rests on a wedge of angle θ = 47∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
Wednesday, October 9, 2013 at 12:38pm by Anonymous

Physics
A lower block is being pulled to the right across a wooden table and it is 5kg and the block on top of it weighs 2 Kg. The friction between the table and the lower block is reduces the total acceleration to be 1.5 m/s2. Friction keeps the upper block attached to the lower one...
Monday, February 21, 2011 at 3:46pm by Paige

Physics
A 5 kg block is being pulled to the right with a 20 N force. This causes the block to slide along the table with an acceleration of 2 m/s2. What is the coefficient of kinetic friction between the block and table?
Monday, February 21, 2011 at 3:43pm by Paige

physics
There is a block on top of an incline plane. The incline is going down to the right. The angle to the right of the 90 is 36.9 degree. There is a force pushing on it from the left. Find the applied force (F) needed to prevent the block from sliding down the incline; ignore ...
Sunday, June 26, 2011 at 11:18am by k9

physics
A block of mass m1 = 28 kg rests on a wedge of angle θ = 47∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
Tuesday, October 8, 2013 at 6:22pm by Anonymous

physics (elena)
A block of mass m1 = 28 kg rests on a wedge of angle θ = 47∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
Wednesday, October 9, 2013 at 1:05pm by Anonymous

physics
A 28.0 block is connected to an empty 2.20 bucket by a cord running over a frictionless pulley. The coefficient of static friction between the table and the block is 0.44 and the coefficient of kinetic friction between the table and the block is 0.35. Sand is gradually added ...
Monday, October 31, 2011 at 10:26am by xxx

MECHANICS NEED HELP ASAP PLEASE !!!
A block of mass 3.8 kg hangs vertically from a frictionless pulley of mass 5.9 kg and radius 20 cm. Treat the pulley as a disk. Find: a) the acceleration of the block; b) the tension in the rope; c) the speed of the block after it has fallen 60 cm, assuming it started at rest:
Sunday, December 1, 2013 at 7:44pm by shek

Physics
A block P of mass 2.75 kg is lying on a rough inclined plane of angle =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

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
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

Physic
The figure below shows a block of mass m resting on a 20 slope. The block has coefficients of friction s = 0.73 and k = 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
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
A 2.5-kg block slides down a 17.0 inclined plane with constant acceleration. The block starts from rest at the top. At the bottom its velocity reaches 0.70 m/s. The length of the incline is 1.7 m. What is the acceleration of the block? What is the coefficient of friction ...
Tuesday, November 1, 2011 at 9:39pm by Eddie

physics
Question # 1 : What is the maximum acceleration a car can undergo if the coefficient of static friction between the tires and the ground is 0.82? Question # 2 : A 1.5-kg block rests on top of a 7.5kg block. The cord and pulley have negligible mass, and there is no significant...
Sunday, May 6, 2012 at 6:17pm by lennon

physics
Question # 1 : What is the maximum acceleration a car can undergo if the coefficient of static friction between the tires and the ground is 0.82? Question # 2 : A 1.5-kg block rests on top of a 7.5kg block. The cord and pulley have negligible mass, and there is no significant...
Sunday, May 6, 2012 at 8:29pm by lennon

physics
Question # 1 : What is the maximum acceleration a car can undergo if the coefficient of static friction between the tires and the ground is 0.82? Question # 2 : A 1.5-kg block rests on top of a 7.5kg block. The cord and pulley have negligible mass, and there is no significant ...
Monday, May 7, 2012 at 9:26pm by ericka

physics
Question # 1 : What is the maximum acceleration a car can undergo if the coefficient of static friction between the tires and the ground is 0.82? Question # 2 : A 1.5-kg block rests on top of a 7.5kg block. The cord and pulley have negligible mass, and there is no significant ...
Monday, May 7, 2012 at 10:28pm by ericka

Physics, Science
A 26 kg block is connected to an empty 1 kg bucket by a cord running over a frictionless pulley. The coefficient of static friction between the table and the block is 0.435 and the coefficient of kinetic friction between the table and the block is 0.320. Sand is gradually ...
Sunday, October 3, 2010 at 9:12pm by Shae

Physics
What is the acceleration of the upper block? The coefficient of kinetic friction between the lower block and upper block is 0.0005. The coefficient of kinetic friction between lower block and floor is 0.0001. Upper block is 1kg, lower block is 2kg, and Force of 20N is applied ...
Tuesday, May 25, 2010 at 1:00am by Doug

physics
A 2.6 kg block slides down a 25 inclined plane with constant acceleration. The block starts from rest at the top. At the bottom, its velocity is 0.75 m/s. The incline is 1.6 m long. (a) What is the acceleration of the block? (b) What is the coefficient of friction?
Tuesday, February 11, 2014 at 9:32am by Khadija

physics help please
The two blocks are connected by a light string that passes over a frictionless pulley with a negligible mass. The 3 kg block lies on a rough horizontal surface with a constant coefficient of kinetic friction 0:3. The hanging block has a mass of 8 kg. The system starts from ...
Thursday, March 1, 2007 at 6:18pm by kitt

physics
A block of a mass of 1 kg rests on the inclined surface of a wedge of a mass of 2.2 kg. The wedge is acted upon by a horizontal force F and slides on a frictionless surface. The acceleration of gravity is 9.81 m/s^2. If the coefficient of static friction between the wedge and ...
Tuesday, July 12, 2011 at 12:27pm by alexa

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 5:33pm by Benji

Physics
A block of mass 0.4 kg rests on the inclined surface of a wedge of mass 1.7 kg. The wedge is acted upon by a horizontal force F~ and slides on a frictionless surface. The acceleration of gravity is 9.81 m/s2. If the coefficient of static friction between the wedge and the...
Monday, October 8, 2012 at 6:21pm by Amanda and Leah

physics
Would it be asking to much for you to use spaces instead of commas between words? Get the mass M1 of the first block from F = 40 N = M1* 2.5 m/s^2 M1 = 16 kg Dropping the second block on top increases total mass to 20 kg. With the same force acting, acceleration is reduced by ...
Saturday, January 19, 2008 at 10:53pm by drwls

physics
A 2.00 kg aluminum block and a 5.20 kg copper block are connected by a light string over a frictionless pulley. They sit on a steel surface, where θ = 28.0°. Determine the sum of the magnitudes of the forces of friction acting on the blocks._____________N I don't understand ...
Saturday, October 24, 2009 at 5:32pm by blair

Physics
A 12.0 kg block sits on a frictionless table. On top of this block is placed a 5.00 kg block. The coefficient of static friction between the two blocks is 0.70. a) What is the maximum force that can be applied horizontally to the 5.00 kg block before it slips? b) What is the ...
Wednesday, July 25, 2012 at 8:21pm by Zac

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

physics
A marble block of mass m1 = 500.1 kg and a granite block of mass m2 = 237.4 kg are connected to each other by a rope that runs over a pulley, as shown in the figure. Both blocks are located on inclined planes with angles = 35.3 degrees and = 56.7 degrees. Both blocks move ...
Monday, October 17, 2011 at 9:24am by Jimmy

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
Block A has a mass of 20kg and is placed on top of cart B which has a mass of 100 kg. Blosk A has a pulley attatched to it with a force of P acting towards the right. Cart B is on rollers. The coefficient of kinetic and static friction are both the same value of 0.5. Find the ...
Friday, October 23, 2009 at 1:10am by Jessi

physics
A 30 kg block slides down a 20 ramp with an acceleration of 1.2 m/s2. What is the coefficient of kinetic friction between the block and the ramp?
Saturday, October 30, 2010 at 9:25pm by HASANNY

Physics (dynamics)
A 47.0 kg slab rests on a frictionless floor. A 18.0 kg block rests on top of the slab. The static coefficient of friction between the block and the slab is 0.50, while the kinetic coefficient of friction is 0.40. The top block is acted upon by a force of 120 N. What is the ...
Saturday, March 10, 2012 at 9:41pm by Andrew

physic
The figure shows a block P on top of another block Q. The two blocks are connected by a string which passes over a fixed smooth pulley. The mass of P is 0.20 kg and the mass of Q is 0.50 kg. The coefficient of static friction between blocks P and Q is 0.5 and between Q and the...
Wednesday, August 8, 2012 at 11:18pm by Anonymous

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 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
Two blocks, A and B (with mass 50 kg and 100 kg, respectively), are connected by a string, as shown in the figure below. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between block A and the incline is μk = 0.28. Determine the ...
Thursday, March 15, 2012 at 11:54am by tom

Physics
A 5 kg block is attached via a rope to a dangle 2kg mass. Consider the case without friction. What angle would the ramp be for the 5kg block to experience zero acceleration?
Monday, February 21, 2011 at 11:33am by Paige

physics
an aluminium of mass 2.1 kg rests on a steel platform. A horizontal force of 15N is applied to block(a) given the coefficient of limiting friction is 0.61 will the block move? (b)if it moves what will be its acceleration?
Tuesday, January 21, 2014 at 5:46pm by Maryam

Physics
36.​A 50.0-kg block and 100-kg block are connected by a string. The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between the 50-kg block and incline is 0.250. Determine the change in the kinetic energy of the 50-kg block as it moves ...
Monday, April 15, 2013 at 7:50am by Noor

physics
A string going over a massless frictionless pulley connects two blocks of masses 4.4 kg and 11 kg. As shown on the picture below, the 4.4 kg block lies on a 23◦ incline; the coefficient of kinetic friction between the block and the incline is μ = 0.29. The 11 kg ...
Thursday, March 6, 2014 at 1:24pm by Sarah

physics
Three blocks are in contact with each other on a frictionless horizontal surface. A 696 N horizontal force is applied to the block with mass of 4.7 kg as shown in the figure below. The acceleration of gravity is 9.8 m/s 2 . 4.7 kg 5.5 kg 7.1 kg F a) What is the net force...
Friday, October 19, 2012 at 12:19am by Anonymous

physics
A 10.0-kg block is at rest on a horizontal floor. If you push horizontally on the 10.0-kg block with a force of 20.0 N, it just starts to move. (a) What is the coefficient of static friction? b) A 12.0-kg block is stacked on top of the 10.0-kg block. What is the magnitude F of...
Thursday, February 17, 2011 at 10:22am by melad

Physics
Two objects are connected by a string with a mass less, friction less pulley. The coefficient of friction is .298. The block on the table is 4 kg. What must the mass of the hanging block be so that the block on the table will move with a constant speed?
Monday, November 19, 2012 at 7:39pm by Elle

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