Friday
December 9, 2016

# Search: block horizontal force speed work friction

Number of results: 68,256

physical aspects of nature
A 1,440-N crate is being pushed across a level floor at a constant speed by a force of 250 N at an angle of 20.0° below the horizontal; (a) What is the coefficient of kinetic friction between the crate and the floor? (b) If the 250-N force is instead pulling the block at an ...
March 15, 2012 by greg

Physics
A force F acts to the right on a 4.81 kg block. A 2.53 kg block is stacked on top of the 4.81 kg block and can slide on it with a coefficient of friction of 0.2 between the blocks. The table has a coefficient of friction of 0.23. The acceleration of gravity is 9.8 m/s 2 . The ...
September 28, 2014 by Ahmed

Physics
A block M1 of mass 20.0 kg sits on top of a larger block M2 of mass 30.0 kg which sits on a flat surface. The kinetic friction coefficient between the upper and lower block is 0.415. The kinetic friction coefficient between the lower block and the flat surface is 0.115. A ...
October 2, 2015 by Marty

mechanics_ physics
A trolley is use in pushing a book 1.20m along a horizontal table top with a horizonta force of 3.0N. The opposing force of friction is 0.6N. 1. How much work does his 3.0N force 2.what is the work done on the book by the friction? The total work done on the book pls indicate ...
January 6, 2013 by precious

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 ...
October 16, 2012 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 as shown in the figure. (a) Construct free-...
October 17, 2012 by Brette

physics
A 2.0-N force acts horizontally on a 10-N block that is initially at rest on a horizontal surface. The coefficient of static friction between the block and the surface is 0.50. What is the magnitude of the frictional force that acts on the block
September 21, 2011 by kelly

physics
a block moves up 45degree incline w/ constant speed under the action of a force of 15n applied parallel to the incline.If the coefficient of kinetic friction is 0.3, determine the weight of the block and minimum force required to allow the block to move down the incline at ...
March 6, 2014 by kmae

Physic
Two blocks, m1 = 4 kg and m2 = 2 kg, are in contact with each other and are on a horizontal surface for which the coefficient of kinetic friction is 0.1. A 34 N horizontal force acts on block 1, making both blocks move in the direction of block 2. 34N --> (m1)(m2) --> ...
October 23, 2015 by Anonimus

Physics to be solved
The block in the figure below lies on a horizontal frictionless surface and is attached to the free end of the spring, with a spring constant of 55 N/m. Initially, the spring is at its relaxed length and the block is stationary at position x = 0. Then an applied force with a ...
October 26, 2012 by Rioster2012

Physics
A 2.30 kg block is initially at rest on a horizontal surface. A horizontal force ModifyingAbove Upper F With right-arrow of magnitude 4.92 N and a vertical force ModifyingAbove Upper P With right-arrow are then applied to the block (see the figure). The coefficients of ...
April 7, 2016 by Sara

Physics
I got two questions Three blocks on a fricitonless horizontal surface are in contact with each other a force F is applied to block 1 mass m1 Draw a free body diagram for each block ok done the accelration of the system (in terms of m1, m2, and m3) ok done I got a = (m1 + m2 + ...
July 12, 2009 by Physics

Physics (is my work correct????)
A tension force of 2.50 N acts horizontally on a 2.00 kg block. The block accelerates at 0.750 m/s2. What is the force of kinetic friction? 2 x .75, = 1.5N (2.5 - 1.5) = 1N?????
January 15, 2015 by Jake

physics
A 20.0kg block rests on a plane inclined at 20.0o to the horizontal. The coefficient of static friction is 0.250, and the coefficient of kinetic friction is 0.150. (a) What is the minimum magnitude of the force F, parallel to the plane that will prevent the block from slipping...
March 21, 2007 by Jean

Physics
A block of mass 2.30 kg is pushed 2.38 m along a frictionless horizontal table by a constant 16.0 N force directed 26.9o below the horizontal. Determine the work done by the applied force. Determine the magnitude of the normal force exerted by the table. Determine the ...
October 1, 2013 by Chris

physics
A block of mass 2.40 kg is pushed 2.09 m along a frictionless horizontal table by a constant 18.6 N force directed 23.7o below the horizontal. Determine the work done by the applied force. Determine the magnitude of the normal force exerted by the table. Determine the ...
October 3, 2013 by beccs

Physics
A 4 kg block rests between the floor and a 3 kg block. The 3 kg block is tied to a wall by a horizontal rope. If the coefficient of static friction is 0.800 between each pair of surfaces in contact, what force must be applied horizontally to the 4 kg block to make it move?
December 19, 2012 by Joe

Physics
You push your couch a distance of 3.6 m across the living room floor with a horizontal force of 198.0 N. The force of friction is 151.0 N. What is the work done by you, by the friction force, by gravity, and by the net force?
May 27, 2012 by Nate

nova
7) You throw a 12-N stone vertically into the air from ground level. You observe that when it is 15.0 m above the ground, it is traveling at 25.0 m/s upward. Use the work –energy theorem to find (a) the stone’s speed just as it left the ground and (b) its maximum height. 8...
September 20, 2014 by papy

Physics
A contestant in a winter games event pushes a 59.0 kg block of ice across a frozen lake as shown in the figure below. The coefficient of static friction is 0.1 and the coefficient of kinetic friction is 0.03. The block is being pushed at a direction of 23 degrees below the ...
February 17, 2015 by Mariah

Mechanics
A block of mass 6 kg is accelerating at 1.25 m/s ,on the horizontal surface, under the action of a horizontal force of magnitude 22.5 N . Calculate the coefficient of friction between the block and the surface.
March 30, 2016 by Meet

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...
March 27, 2012 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...
March 27, 2012 by Isabella

physics help needed very urgent !!!
The block in the figure below lies on a horizontal frictionless surface and is attached to the free end of the spring, with a spring constant of 55 N/m. Initially, the spring is at its relaxed length and the block is stationary at position x = 0. Then an applied force with a ...
October 26, 2012 by helper

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 ...
February 22, 2014 by Mimi

physics
10. A 2-kg object is moving at 3m/s. A 4-N force is applied in the direction of motion and then removed after the object has traveled an additional 5m. The work done by this force is: A. 12 J B. 15 J C. 18 J D. 20 J E. 38 J ans: D 11. A sledge (including load) weighs 5000 N. ...
December 31, 2014 by Anonymous

physics
a book,initially at rest is pushed along a horizontal table top by a horizontal force of 2N. After 1s it has been moved 1.5m. The force of friction is 0.4N a.how much work is done on the book by the 2N force? b.how much work is done on the book by friction? c.what is the books...
January 27, 2013 by confidence

physics
A 20kg block is being pulled by a 150N force,the block is initially at rest,if the coefficient of frictionbetween the block and the surface is 0.3,find (a)the normal force,(b)the friction force acting on the block,(c)find the acceleration of the block
October 28, 2011 by amaka

Physics Check My Work Please
A 8 kg block is moving with an initial speed of 6 m/s on a rough horizontal surface. If the force is 12 N, approximately how far does the block travel before it stops? *I have: V^2=Vi^2+2ax 0=(6 m/s)^2 + 2(-9.8 m/s^2)(x) -36 m^2/s^2 = -19.6 m/s^2(x) x = 1.83 m. *Is this ...
December 3, 2015 by Jose Luis

Physics
A dock worker applies a constant horizontal force of 79.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves 11.0 m in the first 6.00 s. What is the mass of the block of ice? Work done = final kinetic ...
September 19, 2006 by Veronica

Physics
A block,mass 20kg,is pulled upwards by a force F along a plane inclined at 30 degree to the horizontal.it accelerate along the inclined plane at 2m.s-2. The surface of the inclined exert a friction force on the block calculate the component of the gravitational force exerted ...
February 7, 2013 by Kenneth

Physics
A block,mass 20kg,is pulled upwards by a force F along a plane inclined at 30 degree to the horizontal.it accelerate along the inclined plane at 2m.s-2. The surface of the inclined exert a friction force on the block calculate the component of the gravitational force exerted ...
February 7, 2013 by Kenneth

physics
an 85kg concrete block rests on a flat surface with coefficient of static friction=0.42. find the maximum force that can pull on the block with, angle of 38 degrees above the horizontal without moving the block?
October 10, 2016 by solve this i will love you for ever

physics
an 85kg concrete block rests on a flat surface with coefficient of static friction us=0.42. find the maximum force that can pull on the block with, angle of 38 degrees above the horizontal without moving the block?
October 10, 2016 by why cant anyone solve this

physics
Starting from rest, a 5.0 kg block slides 2.5 m down a rough 30.0 degrees incline in 2.0s. Determine (a) the work done by the force of gravity. (b) the mechanical energy lost due to friction, and (c) the work done by the normal force between block and incline. I know how to do...
October 23, 2007 by Anonymous

physics
A 2.00 kg block is held in equilibrium on an incline of angle θ = 75° by a horizontal force applied in the direction shown in the figure below. If the coefficient of static friction between block and incline is μs = 0.300, determine the following. (a) the minimum ...
September 29, 2012 by Anonymous

physics
A block of mass 3.90 kg is pushed 3.80 m along a frictionless horizontal table by a constant 16.0 N force directed 24.0° below the horizontal. What is th total work done on the block?
October 25, 2010 by gabe

phy
A block of mass m = 331 g is dragged with a string across a rough horizontal table. The string tension is T = 3.59 N, and it pulls upward at an angle of ¦Õ = 43.0¡ã with the horizontal. At one particular instant the block is moving at a speed of v = 6.90 m/s. The ...
April 17, 2016 by xianhua

Physic 115
A 5 kg block is placed on an inclined plane raised to angle theta with the horizontal when it just started to slip down. If coefficient of friction is 0.3, calculate theta and the speed of the block up the plane if it being pull up by a force of 30 newton
December 20, 2012 by Yahaya

physics
A 2.14 kg block is held in equilibrium on an incline of angle q = 67.7o by a horizontal force, F. If the coefficient of static friction between block and incline is ms = 0.314, determine the minimum value of F. Determine the normal force of the incline on the block.
September 20, 2012 by AB

physics- please !
A 3.0kg- block sits on top of a 5.0kg block which is on a horizontal surface. The 5.0-kg block is pulled to the right with a force as shown in the figure . The coefficient of static friction between all surfaces is 0.65 and the kinetic coefficient is 0.42. PART A: What is the ...
May 8, 2012 by jeni

physics- please !
A 3.0kg- block sits on top of a 5.0kg block which is on a horizontal surface. The 5.0-kg block is pulled to the right with a force as shown in the figure . The coefficient of static friction between all surfaces is 0.65 and the kinetic coefficient is 0.42. PART A: What is the ...
May 8, 2012 by jeni

physics
A block slides down a rough plane. The plane makes an angle of 60 degrees with the horizontal, the weight of the block is 5.0N and the coefficient of kinetic (dynamic) friction between the block and the plane is 0.30. 1) determine the magnitude of the frictional force acting ...
October 4, 2006 by blacksheep

physics
A block of mass 2.5 kg is pushed up against the vertical wall by a force of 60 N acting at 47◦ to the ceiling. The coefficient of kinetic friction between the block and the wall is 0.67. The acceleration of gravity is 9.8 m/s2 . Find the work done by this force in moving...
June 27, 2014 by Kaylee

physics
A stewardess pulls her 70 N flight bag a distance of 200 m along an airport floor at constant speed. The force she exerts is 40 N at an angle of 50 degrees above the horizontal. Find (a) the work she does, (b) the work done by the force of friction, and (c) the coefficient of ...
October 22, 2007 by Anonymous

College physics
dockworker applies a constant horizontal force of 80.0N to a block of ice on a smooth horizontal floor. thhe block starts from rest and moves 11.0m in 5.00s. (a) what is the mass of the ice block? (b) if the work stops pushing at the end of the 5.00s, How far does the block ...
April 10, 2014 by Lesego

Science
A horizontal force 10 N is necessary to just hold a block stationary against a wall . The coefficient of friction between the block and the wall is 0.2 . The weight of the block will be ?
April 22, 2014 by Lalit

Physics
A block of mass 9.00 kg is pushed up against a wall by a force P that makes a 50.0° angle with the horizontal as shown below. The coefficient of static friction between the block and the wall is 0.245. Determine the possible values for the magnitude of P that allow the block ...
June 6, 2012 by Kathy

physics
A 4.170 kg block of wood rests on a steel desk. The coefficient of static friction between the block and the desk is μs = 0.505 and the coefficient of kinetic friction is μk = 0.255. At time t = 0, a force F = 12.7 N is applied horizontally to the block. State the ...
October 25, 2012 by ashley

Physics
A 4.500 kg block of wood rests on a steel desk. The coefficient of static friction between the block and the desk is μs = 0.455 and the coefficient of kinetic friction is μk = 0.155. At time t = 0, a force F = 12.4 N is applied horizontally to the block. State the ...
October 29, 2014 by Mira

physics
A 6.110 kg block of wood rests on a steel desk. The coefficient of static friction between the block and the desk is μs = 0.455 and the coefficient of kinetic friction is μk = 0.255. At time t = 0, a force F = 16.8 N is applied horizontally to the block. State the ...
December 10, 2014 by lacie

Physics
A block of mass m is being dragged across the floor by a force F. The coefficient of friction between the block and floor is u. Show that if the block is being accelerated by the force F from rest for a time t, the speed of the block at time t can be found from: Vf= (F/m - ug)t
November 10, 2011 by Courtney

Physics
Two blocks (on top of one another), each of mass m = 2.4 kg, are pushed along the horizontal surface of a table by a horizontal force of magnitude 6.8 N, directed to the right. The blocks move together to the right at constant velocity. (a) Find the frictional force exerted on...
September 27, 2011 by Kellie

Physics
A wooden block of mass m = 2.3 kg starts from rest on an inclined plane sloped at an angle 26 degrees from the horizontal. The block is originally located 1.9 m from the bottom of the plane. Assume the inclined plane is friction less. 1)What is the magnitude of the component ...
February 25, 2014 by Sydney

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 ...
October 23, 2009 by Jessi

Physics
A 3.0 kg block is moved up a 37 incline under a constant horizontal force of 40.0 N. The coefficient of friction is 0.10 and the block is displaced 2.0 m up the incline. Calculate the change in the kinetic energy of the block.
May 7, 2014 by Andrew

Physics
Two blocks of masses 40.0kg and 20.0kg are stacked on a table with the heavier block on top. The coefficient of static friction is 0.600 between the top and bottom blocks and 0.300 between the bottom block and the table. What is the required magnitude of a horizontal force ...
October 31, 2006 by Eric

physics
a block slides along a path that is without friction until the block reaches the section of length L = 0.75 m, which begins at height h = 2.0 m on a ramp of angle θ = 30°. In that section, the coefficient of kinetic friction is 0.40. The block passes through point A with...
March 30, 2016 by Kayla

physics
A 3.5 kg block, initially in motion, is pushed along a horizontal floor by a force F of magnitude 19 N at an angle θ = 45° with the horizontal. The coefficient of kinetic friction between the block and floor is 0.25. (Assume the positive direction is to the right.)
November 18, 2010 by maya

physics
you push a physics book 1.50m along a horizontal tabletop with a horizontal push of 2.40 N while the opposing force of friction is 0.600 N. How much work does each of the follwing forces do on the book? A) you 2.40N push. B) the friction force. C) the normal force from the ...
June 18, 2009 by Sarah

Physics
A 4.9 kg block initially at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal force of 14 N. Find the speed of the block after it has
November 4, 2014 by Elizabeth

Physics
The horizontal surface on which the block of mass 5 kg slides is frictionless. The force of 29 N acts on the block in a horizontal direction and the force of 58 N acts on the block at an angle(top Right). What is the magnitude of the resulting acceleration of the block?
October 9, 2014 by Isaac

physics
A 100 kg mass starts from rest at the top of an incline plane that makes an angle of 35 degrees with the horizontal. There is a coefficient of friction of 0.005 between the ramp and the mass. The mass slides down the ramp and then slides to a stop on a surface that the ...
May 14, 2010 by Steven

PHYSIC
A block displacement causs of a force in a horizontal surface is 13m and the work done by the force on the block .6 joules .
August 20, 2016 by karl

physics
A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N frictional force. He pushes in a direction 25.0º below the horizontal. (a) What is the work done on the cart by friction? (b) What is the work done on the cart by the gravitational ...
March 10, 2014 by Mohanad

Physics
A 3.0 kg block is moved up a 37 degree incline under a constant horizontal force of 40.0 N. The coefficient of friction is 0.10 and the block is displaced 2.0 m up the incline. Calculate the change in the kinetic energy of the block.
May 7, 2014 by Andrew

PHYSICS
A 3.0 kg block is moved up a 37 degree incline under a constant horizontal force of 40.0 N. The coefficient of friction is 0.10 and the block is displaced 2.0 m up the incline. Calculate the change in the kinetic energy of the block.
May 8, 2014 by HELP HELP ME PLEASE

Physics!!!!
3. You push your physics book 1.50 m along a horizontal table- top with a horizontal push of 2.40 N while the opposing force of friction is 0.600 N. How much work does each of the following forces do on the book: (a) your 2.40-N push, (b) the friction force, (c) the normal ...
October 24, 2015 by Anonymous

Physics
A 45 kg trunk is pushed 7.8 m at constant speed up a 30° incline by a constant horizontal force. The coefficient of kinetic friction between the trunk and the incline is 0.23. a)Calculate the work done by the applied horizontal force. b)Calculate the work done by the weight ...
October 23, 2009 by Rachel

physics
The block in the figure below lies on a horizontal frictionless surface and is attached to the free end of the spring, with a spring constant of 60 N/m. Initially, the spring is at its relaxed length and the block is stationary at position x = 0. Then an applied force with a ...
October 25, 2009 by henry

Physics
A force of 9.4N pulls horizontally on a 1.2-kg block that slides on a rough, horizontal surface. This block is connected by a horizontal string to a second block of mass m2 = 2.00kg on the same surface. The coefficient of kinetic friction is μk = 0.25 for both blocks. ...
March 18, 2014 by Sally Mae

Static Friction..I really Have no Idea
A 0.40 kg block rests on a desk. The coefficient of static friction is 0.20. You push the side of the block but do not have a spring scale to measure the force you use. The block does not move. Which statement is true about the force of static friction? It is no larger than 0....
December 21, 2014 by Sam

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 ...
July 25, 2012 by Zac

Physics
Three blocks of mass 10kg, 20kg, 15kg respectively are being pushed in a row on along a horizontal surface with constant velocity by a force applied to the 10kg block.The coefficient of kinetic friction between each of the blocks and the surface is 0.18. What is the magnitude ...
June 16, 2015 by Alex

Physics
A 250g wood block firmly attached to a horizontal spring slides along a table with a coefficient of friction of 0.40. A force of 30.N compresses the spring 20cm. If the spring is released from this position what will be the block's speed when it passes equilibrium position?
June 4, 2014 by Joey

Physics
A 5.9 kg block initially at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal force of 12.1 N. Find the speed of the block after it has moved 2.6 m.
November 3, 2014 by Anonymous

Physics Dynamics
A 10-kg block is pushed against a vertical wall by a horizontal force of 100 N. What is the coefficient of static friction between the block and the wall if the block is about to slide down?
February 8, 2015 by Anonymous

physics
A large block P executes horizontal simple harmonic motion as it slides across a frictionless surface with a frequency f = 1.7 Hz. Block B rests on it, as shown in the figure, and the coefficient of static friction between the two is ìs=0.64. (b) What is the maximum force of ...
November 26, 2012 by Anonymous

physics
A large block P executes horizontal simple harmonic motion as it slides across a frictionless surface with a frequency f = 1.7 Hz. Block B rests on it, as shown in the figure, and the coefficient of static friction between the two is ìs=0.64. (b) What is the maximum force of ...
November 28, 2012 by Anonymous

Physics - Mechanics
A small block of mass 1.2 kg is launched by a compressed spring with force constant k=600 N/m. The initial compression of the spring is 0.15 m. The block slides along a horizontal frictionless surface and then up an inclined plane that makes an angle θ=40˚ with the ...
March 13, 2015 by Anonymous

Physics - Mechanics
A small block of mass 1.2 kg is launched by a compressed spring with force constant k=600 N/m. The initial compression of the spring is 0.15 m. The block slides along a horizontal frictionless surface and then up an inclined plane that makes an angle θ=40˚ with the ...
March 14, 2015 by Anonymous

physics
A block of mass 1.4kg is placed on a rough surface. the coefficient of friction between the surfaces is 0.58. A constance force of magnitude 10N, making an angle of 37 degrees with the horizontal is acting on the block. the block is given an initial velocity of 14 m/s towards ...
September 10, 2011 by usha

Physics
A 2.19 kg block is held in equilibrium on an incline of angle q = 55.0o by a horizontal force, F, applied in the direction shown in the figure below. If the coefficient of static friction between block and incline is ms = 0.283, determine the minimum value of F. Determine the ...
February 3, 2016 by Weeks

PHYSICS HELP
A team of dogs is pulling a sled that has a load of 2500 kg at a constant speed of 5.0 m/s. The coefficient of kinetic friction between the sled and the snow is 0.10. What is the horizontal force the dogs are exerting on the loaded sled? The horizontal force is equal to the ...
October 16, 2006 by Suzanne

physics
A force is applied to an initially stationary block of mass 1.75 kg that sits on a horizontal floor as shown. The 53.5 N force is applied at θ = 32° angle. The coefficients of friction between the floor and the block are μs = 0.593 and μk = 0.343. What is the ...
October 7, 2014 by Anonymous

physics
A block lies on a smooth plane tilted at an angle è = 28.5° to the horizontal. Ignore friction. (a) Determine the acceleration of the block as it slides down the plane. 1 m/s2 (b) If the block starts from rest 9.40 m up the plane from its base, what will be the block's speed...
December 7, 2010 by An

physics (question impossible to solve)
an 85kg concrete block rests on a flat surface with coefficient of static friction us=0.42. find the maximum force that can pull on the block with, angle of 38 degrees above the horizontal without moving the block?
October 10, 2016 by help (sos)

engineering mechanics
A block P weighing 200KN rests on the top of the block Q of weight 300KN and they are connected by a common string passing around a frictionless pulley S which is tied to a vertical wall by a horizontal string as shown if the coefficient of friction between the rubbing ...
December 26, 2014 by Anonymous

Physics
A block of mass m is pulled across a level surface by a rope that makes an angle θ with the horizontal. The coefficient of friction is μ. (a) Determine the amount of force F required to slide the block at a constant velocity. (b) Determine the optimum angle at which ...
December 3, 2014 by Liz

Physics
A child pushes a toy box 4.0m along the floor with the force of 6.00 N directed downward at an angle 37 degrees to the horizontal. a. How much work does the child do?" b. Would you expect more or less work to be done if the child pulled upward at the same angle? Work is force*...
September 16, 2006 by stefy

physics
an ice skater applies a horizontal force to a 20 kg block on frictionless, level ice causing the block to accelerate uniformly at 1.4 m/s^2 to the right. after the skater stops pushing the block it slides onto a region of ice that is covered with a thin layer of sand. the ...
November 21, 2014 by Maria

Physics
A block slides from rest with negligible friction down a track, descending 5.0m to point P at the bottom. It then slides on the horizontal surface. The coefficient of friction between the block and the horizontal surface is 0.20. How far does the block slide on the horizontal ...
December 29, 2012 by Anonymous

physics
A 8.5 kg block intially at rest is pulled to the rightr along a horizontal, frictionless surface by a constant horizontal force of 15.6 Newtons. Find the speed of the block after 2.8 meter
October 31, 2010 by Sarh

physics
A 11.1-kg block rests on a horizontal table and is attached to one end of a massless, horizontal spring. By pulling horizontally on the other end of the spring, someone causes the block to accelerate uniformly and reach a speed of 3.12 m/s in 1.17 s. In the process, the spring...
November 13, 2012 by Michelle

Physics
Block A is 4.5 kg and Block B is 2.25 kg. a. determine the mass of block C that must be placed on block A to keep it from sliding if the coefficient of static friction between block A and the table is 0.2 b. If the coefficient of kinematic friction between the surface and ...
February 29, 2016 by Diana

Physics (Mechanics)
A 10-kg crate on a ramp is inclined at 30 degrees from the horizontal and released. The coefficients of friction between them are .48 (coefficient of static friction) and .28 (coefficient of kinetic friction). a) Does the block slide? b) What then is the actual friction force...
September 30, 2012 by Anonymous

physics
A 4.8 kg block is pushed along the ceiling with a constant applied force of 87 N that acts at an angle of 55.0° with the horizontal, as in Figure 4-33. The block accelerates to the right at 6.00 m/s2. Determine the coefficient of kinetic friction between the block and the ...
December 5, 2010 by Corey

Physics
A 4.4 kg block is pushed along the ceiling with a constant applied force of 89 N that acts at an angle of 55.0° with the horizontal, as in Figure 4-33. The block accelerates to the right at 6.00 m/s2. Determine the coefficient of kinetic friction between the block and the ...
December 2, 2011 by Kashawn

Science
Can someone please help me with this problem? A 200-1b block rests on a horizontal plane. Find the magnitude of the force P required to give the block an acceleration of 10 ft/s2 to the right. The coefficient of friction between the block and the plane is 0.25.
November 8, 2015 by Latoya

Physics
Starting from rest, a 5kg block slides 2.5 m down a rough 30o incline in 2 seconds. Find a) the work done by the force of gravity. b) the work done by friction. c) the work done by the normal force Do part b last
October 19, 2016 by Anonymous