Saturday
April 19, 2014

Search: 2 masses, pulley on a frictionless incline

Number of results: 5,758

Physics
a) Find the acceleration of the block if the incline is frictionless. b)Find the acceleration of the block if the coefficient of kinetic friction between the block and incline is 0.12.
Wednesday, November 16, 2011 at 9:12pm by Josh

Physics
A block of mass 3.1 kg hangs vertically from a frictionless pulley of mass 5.9 kg and radius 14 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 55 cm, assuming it started at rest:
Monday, November 28, 2011 at 3:53pm by warrren

Science
A block of mass 3.1 kg hangs vertically from a frictionless pulley of mass 5.9 kg and radius 14 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 55 cm, assuming it started at rest:
Wednesday, November 30, 2011 at 5:44pm by John

Physics
A box weighing 136. N rests on a table. A rope tied to the box runs vertically upward over a massless frictionless pulley and a weight is hung from the other end. What is the force that the table exerts on the box if the weight hanging the other side of the pulley weighs: 2....
Wednesday, October 24, 2012 at 9:31pm by Steeve

physics
Two objects with masses of 2.30 kg and 7.40 kg are connected by a light string that passes over a frictionless pulley (a) Determine the tension in the string. (Enter the magnitude only.) (b) Determine the acceleration of each object. (Enter the magnitude only.) (c) Determine ...
Wednesday, September 28, 2011 at 8:06pm by Anonymous

physics please help :/
A 0.50-kg block, starting at rest, slides down a 30.0 incline with kinetic friction coefficient 0.30 (the figure below). After sliding 84 cm down the incline, it slides across a frictionless horizontal surface and encounters a spring (k = 33 N/m). (a) What is the maximum ...
Thursday, March 1, 2012 at 5:11pm by Angel

physics
Question Part Points Submissions Used 1 2 3 4 5 /5 /5 0/5 /5 2/2 0/10 0/10 1/10 0/10 2/10 Total 2/22 A block of mass m = 2.00 kg is released from rest at h = 0.400 m from the surface of a table, at the top of a θ = 35.0 incline as shown below. The frictionless incline...
Wednesday, October 19, 2011 at 10:03pm by carlton

physics
A uniform spherical shell of mass M = 8.00 kg and radius R = 0.550 m can rotate about a vertical axis on frictionless bearings. A massless cord passes around the equator of the shell, over a pulley of rotational inertia I = 0.130 kgm2 and radius r = 0.140 m, and is attached ...
Thursday, February 24, 2011 at 10:00am by jr

physics
A 16 lb block rests on a horizontal frictionless surface. A cord attached to the block, running horizontally, passes over a pulley whose diameter is 1 in, to a hanging block weighing 16 lb. The system is released from rest, and the blocks are observed to move 7.6 ft in 4 s. ...
Monday, May 6, 2013 at 9:04pm by Science

Physics
A ramp, a pulley, and two boxes. Box A, of mass 10.0 kg, rests on a surface inclined at 37 to the horizontal. It is connected by a lightweight cord, which passes over a massless and frictionless pulley, to a second box B, which hangs freely as shown. If the coefficient of ...
Sunday, April 10, 2011 at 1:01pm by Liz

Physics
I have posted the same questions over and over and received no help. Will someone please help me? A horizontal spring with a spring constant of 200.0 N/m is compressed 25.0 cm and used to launch a 3.00 kg block across a frictionless surface. After the block travels some ...
Thursday, November 17, 2011 at 8:53pm by Helppp

Re: Pig question (Physics)
Thank you, I think I get it now. I have one more question: a kimchi container of mass 1=3.0 kg connected to a block of mass m2 by a cord looped around a frictionless pulley. The cord and pulley have negligible mass. When the container is released from rest, it accelerates at 1...
Thursday, October 12, 2006 at 7:36pm by Amber

Physics
a 2 kg mass and a 3 kg mass are attached to a lightweight cord that passes over a frictionless pully. the hanging masses are left free to move. a. in what direction will the smaller masses move? b.what will be its acceleration
Wednesday, December 5, 2012 at 8:07pm by chris

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
An arrangement of 3 blocks A ,B,C such that block A of mass 5 kg is over block B of 6 kg, with a friction between them of 0.8. both the blocks are connected to the 3rd block C of mass m by a string and frictionless pulley. Now to find at what value of m will both pulley A and ...
Friday, July 12, 2013 at 1:33pm by SURAJ

Physics
If a marble of mass 4.0 kg and radius 0.2 m is rolling up an incline at 10 m/s and the incline is h meters high, what minimum height must that incline be in order for the marble to stop while on the incline?
Wednesday, April 17, 2013 at 6:49pm by Tee

physics
A crate weighs 820N and rests on a 34degree incline. You can keep it from sliding down the incline by pushing on it with a force of 240N applied parallel to the incline. 1)Calculate the coefficient of static friction between the crate and the incline. 2)What is the greatest ...
Sunday, September 26, 2010 at 5:37pm by Anonymous

College Physics
A simple Atwoods machine uses a massless pulley and two masses m1 and m2. Starting from rest, the speed of the two masses is 6.7 m/s at the end of 6.1 s. At that time, the kinetic energy of the system is 85 J and each mass has moved a distance of 20.435 m Find the value of ...
Tuesday, November 1, 2011 at 8:53pm by Loreal

Physics
There must be more to the problem than that. What are the masses doing? Just sitting there? Is there a slope? gravity? a pulley?
Tuesday, January 25, 2011 at 1:26pm by drwls

physics
A block of mass 0.22 kg can slide on a frictionless incline ( = 30) and is connected via a string to a vertical spring (k = 3.6 N/m). The system starts at rest with the spring at its natural length. (a) What is the maximum distance along the incline through which the block ...
Friday, October 7, 2011 at 1:30am by Jill

college trig
find the radius of a pulley if rotating the pulley 108.03 degrees raises the pulley 37.3mm
Monday, July 15, 2013 at 1:34pm by brandi

physics
The system shown in the figure below consists of a m1 = 5.52-kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76-kg block.The pulley is a uniform ...
Sunday, March 24, 2013 at 7:12pm by Nicole

physics
The system shown in the figure below consists of a m1 = 5.52-kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76-kg block.The pulley is a uniform ...
Sunday, March 24, 2013 at 12:32pm by Nicole

physics
The system shown in the figure below consists of a m1 = 5.52-kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76-kg block.The pulley is a uniform ...
Sunday, March 24, 2013 at 1:03pm by Nicole

physics
The system shown in the figure below consists of a m1 = 5.52-kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76-kg block.The pulley is a uniform ...
Sunday, March 24, 2013 at 1:04pm by Nicole

physics
The system shown in the figure below consists of a m1 = 5.52-kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76-kg block.The pulley is a uniform ...
Sunday, March 24, 2013 at 6:15pm by Nicole

physics
The system shown in the figure below consists of a m1 = 5.52-kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76-kg block.The pulley is a uniform ...
Sunday, March 24, 2013 at 6:16pm by Nicole

Physics
A block slides down a frictionless plane having an inclination of 14.3. If the block starts from rest at the top and the length of this incline is 1.77 m, find the acceleration of the block. b)What is the block's speed when it reaches the bottom of the incline? i found the ...
Sunday, October 26, 2008 at 1:53am by Anonymous

College Physics
An electric motor turns a flywheel through a drive belt that joins a pulley on the motor and a pulley that is rigidly attached to the flywheel as shown in the figure below. The flywheel is a solid disk with a mass of 55.5 kg and a radius R = 0.625 m. It turns on a frictionless...
Sunday, October 17, 2010 at 5:31pm by Jared

physics
A skier is gliding along at 1.13 m/s on horizontal, frictionless snow. He suddenly starts down a 13.1 incline. His speed at the bottom is 18.8 m/s. What is the length of the incline? ------------------------------------ Use his change in kinetic energy to get his loss of ...
Wednesday, October 8, 2008 at 12:47am by Vishnu

physics
Two blocks with masses m1 = 1.10 kg and m2 = 3.10 kg are connected by a massless string, as shown in the Figure (the figure shows m1 on top of a box and m2 hanging off the side of the box). They are released from rest. The coefficent of kinetic friction between the upper block...
Tuesday, February 28, 2012 at 3:53pm by meyer

physics
Two blocks with masses m1 = 1.10 kg and m2 = 3.10 kg are connected by a massless string, as shown in the Figure (the figure shows m1 on top of a box and m2 hanging off the side of the box). They are released from rest. The coefficent of kinetic friction between the upper block...
Tuesday, February 28, 2012 at 3:55pm by meyer

Physics
Two objects with masses 4.90 and 2.10 hang 0.800 above the floor from the ends of a cord 7.20 long passing over a frictionless pulley. Both objects start from rest. Find the maximum height reached by the 2.10 object. The heavier object will move .8 m down, the lighter will ...
Monday, April 1, 2013 at 5:14am by Ben

Physics
A box which has a mass of 14kg is sliding along a horizontal surface with a velocity of 18m/s when it encounters a frictionless inclined plane which meets the horizontal at an angle of 28 degrees. The box slides up the incline until it comes to a halt. How far up the incline ...
Saturday, February 25, 2012 at 9:04pm by Rob

physics
If two different masses have the same kinetic energy, their momenta are: 1. inversely proportional to their masses 2. inversely proportional to the square roots of their masses 3. proportional to the squares of their masses 4. proportional to their masses 5. proportional to ...
Friday, October 28, 2011 at 4:04pm by Anonymous

physics
A 0.145 kg block is released from rest from the top of a 51.7◦ frictionless incline. When it has fallen a vertical distance of 1.3 m, a 0.00794 kg bullet is fired into the block along a path parallel to the slope of the incline, and momentarily brings the block to rest, ...
Friday, April 9, 2010 at 11:02am by Jen

PHYSICS
So the pulley has more mechanical advantage and the incline has more efficiency?
Monday, June 27, 2011 at 8:40pm by Jordan

physics
A block (mass = 2.9 kg) is hanging from a massless cord that is wrapped around a pulley (moment of inertia = 1.2 x 10-3 kgm2), as the figure shows. Initially the pulley is prevented from rotating and the block is stationary. Then, the pulley is allowed to rotate as the block...
Wednesday, November 3, 2010 at 4:25pm by danica

AP physics
On Block has a mass M=500 g, the other has mass m=460 g, they are hooked to a string and is on a pulley will one mass on either side, the pulley, which is mounted in horizontal frictionless bearings, has a radius of 5 cm. When released from rest, the heavier block falls 81.5 ...
Sunday, January 27, 2008 at 9:34am by Kristen

Physics
Two blocks with masses m1 = 1.40 kg and m2 = 3.00 kg are connected by a massless string, as shown in the Figure. They are released from rest. The coefficent of kinetic friction between the upper block and the surface is 0.390.In the figure m1 is on top of a horizontal table ...
Wednesday, March 6, 2013 at 9:14pm by Heidi

Physics, please help me today.
four pulleys are connected by two belts. Pulley A (radius 15cm) is the drive pulley and it rotates at 10 rad/s. Pulley B (radius 10 cm) is connected by belt 1 to pulley A. Pulley B' (radius 5cm) is concentric with pulley B and is rigidly attached to it. Pulley C (radius 25cm) ...
Friday, November 17, 2006 at 10:48am by Dawn

physics
Unless otherwise stated, all objects are located near the Earth's surface, where = 9.80 . A block of mass 23.0 slides down a frictionless surface inclined at 35. Part A To ensure that the block does not accelerate, what is the magnitude of the smallest force that you must ...
Saturday, September 29, 2012 at 8:26pm by sammy

Physics
A mass of m1 = 6.00 kg is sitting on an inclined plane, which meets the horizantal at an angle of 22.0, which has a coefficient of sliding friction of 0.290, which is 3.50 m = L. a string is attached to m1, it is strung over a pulley, and attached to mass m2 = 7.0kg which is ...
Sunday, September 30, 2012 at 6:11pm by Adrian

Physics
An object of mass M = 1,114 g is free to move along a horizontal, frictionless surface. This object is further connected to a second object with a mass of m = 811 g by means of a massless string that extends around a massless, frictionless pulley. Find the tension of the ...
Saturday, October 10, 2009 at 1:29pm by Lisa

Physics
A box of mass m2 = 3.1 kg rests on a frictionless horizontal shelf and is attached by strings to boxes of masses m1 = 1.6 kg and m3 = 2.6 kg as shown below. Both pulleys are frictionless and massless. The system is released from rest. After it is released, find the tension in ...
Wednesday, October 3, 2012 at 7:14pm by Madi

PHYSICS PLEASE HELP !!!!!
the masses have a weight component down the incline of mg*sinTheta. So the force due to gravity down the incline on rope 1 (if I understand your description) is (m1+m2)g*sinTheta now, if you add F, so that F+weight=300N F= 300N-(m1+m2)gSinTheta
Friday, October 21, 2011 at 1:00pm by bobpursley

Physics
Three blocks of masses 1.0, 2.0, and 4.0 kilograms are connected by massless strings, one of which passes over a frictionless pulley of negligible mass, as shown above. Calculate each of the following. a. The acceleration of the 4 kilogram block b. The tension in the string ...
Sunday, February 28, 2010 at 4:46pm by Kate

Physics/mats
Two blocks with masses m1 = 1.40 kg and m2 = 3.00 kg are connected by a massless string, as shown in the Figure. They are released from rest. The coefficent of kinetic friction between the upper block and the surface is 0.390.In the figure m1 is on top of a horizontal table ...
Thursday, March 7, 2013 at 11:58am by HP

Physics
a 975 N object is pulled at a constant velocity up an incline with a force of 327 n parallel to the incline as shown in the diagram. Assume that the difference between the work output and the work input is the work required to overcome friction. a) what is the force of ...
Tuesday, April 12, 2011 at 6:13pm by Jeremy

physics
A 975 N object is pulled at a constant velocity up an incline with a force of 327 n parallel to the incline as shown in the diagram. Assume that the difference between the work output and the work input is the work required to overcome friction. a) what is the force of ...
Tuesday, April 12, 2011 at 6:46pm by Jeremy

physics
A 5.2 kg box is on a frictionless 36 degree slope and is connected via a mass less string over a mass less, frictionless pulley to a hanging 2.1 kg weight. What is the tension in the string if the 5.2 kg box is held in place, so that it cannot move?
Sunday, October 10, 2010 at 10:27pm by Taylor

Physics
A block of weight = 25.0 N sits on a frictionless inclined plane, which makes an angle = 34.0 with respect to the horizontal, as shown in the figure. A force of magnitude F= 14.0 N, applied parallel to the incline, is just sufficient to pull the block up the plane at constant ...
Sunday, October 17, 2010 at 10:33pm by Eden

Physics
This is another problem that I need clarification on since no one seems to be of any help at my school, A pulley system is used to lift a 52- crate.Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. Assume ...
Thursday, October 8, 2009 at 11:43am by Matthew

physics
A massless string runs around two massless, frictionless pulleys. An object with mass m = 20 kg hangs from one pulley. A force F is exerted on the free end of the string to lift the object at a constant speed by a distance of 2.3 m. What is the work done on the object by the ...
Monday, November 16, 2009 at 7:10pm by m2a

PHYSICS
With a single pulley you can get a mechanical advantage of 2, no more However with a plane you can lift any mass with force approaching zero if the incline angle is small enough.
Monday, June 27, 2011 at 8:40pm by Damon

phyics help nedded
In the figure below, three ballot boxes are connected by cords, one of which wraps over a pulley having negligible friction on its axle and negligible mass. The masses are mA = 24.0 kg, mB = 40.0 kg, mC = 30.0 kg. (a) When the assembly is released from rest, what is the ...
Friday, October 19, 2012 at 4:17am by some one

engineering mechanics
A person A is trying to keep his balance while on a sled B that is sliding down an icy incline. Let mA = 78kg and mB = 25 kg be the masses of A and B, respectively. In addition, let the static and kinetic friction coefficients between A and B be μs = 0.4 and μk = 0....
Monday, December 31, 2012 at 7:58pm by q

physics
Two blocks of mass m1 = 1.0 kg and m2 = 2.5 kg are connected by a massless string. They are released from rest. The coefficent of kinetic friction between the upper block and the surface is 0.40. Calculate the speed of the blocks after they have moved a distance 72 cm. Assume ...
Saturday, December 4, 2010 at 8:20pm by lucy

college physics
A block of weight = 35.0 N sits on a frictionless inclined plane, which makes an angle theta = 27.0 with respect to the horizontal. A force of magnitude = 15.9 N, applied parallel to the incline, is just sufficient to pull the block up the plane at constant speed. What is Wg, ...
Thursday, February 25, 2010 at 11:58am by Anonymous

physics
A spring with a spring-constant 2.2 N/cm is compressed 28 cm and released. The 4 kg mass skids down the frictional incline of heigh 43 cm and inclined at a 22 degrees angle (g = 9.8 m/s^2) The path is frictionless except for a distance of 0.9 m along the incline which has a ...
Wednesday, October 6, 2010 at 7:28pm by Mimi

Physics
Let mass be: m1=0.100 kg m2=0.300 kg m3=0.500 kg (a.)Compute for the acceleration of the system if the table is frictionless. (b.)Compute the acceleration of the system if the coefficient of the friction between the m2 and the table is 0.400. You can't compute acceleration ...
Sunday, September 10, 2006 at 7:54am by frosty

physics
In the Atwood machine shown below, m1 = 2.00 kg and m2 = 6.00 kg. The masses of the pulley and string are negligible by comparison. The pulley turns without friction and the string does not stretch. The lighter object is released with a sharp push that sets it into motion at ...
Monday, October 17, 2011 at 12:50pm by carlton

physics
A spring with a spring-constant 2.2 N/cm is compressed 28 cm and released. The 5 kg mass skids down the frictional incline of height 31 cm and inclined at a 18◦ angle. The acceleration of gravity is 9.8 m/s2 . The path is frictionless except for a distance of 0.8 m along...
Tuesday, June 12, 2012 at 2:53pm by melissa

physics
A spring with a spring-constant 2.2 N/cm is compressed 28 cm and released. The 5 kg mass skids down the frictional incline of height 31 cm and inclined at a 18◦ angle. The acceleration of gravity is 9.8 m/s2 . The path is frictionless except for a distance of 0.8 m along...
Tuesday, June 12, 2012 at 2:54pm by melissa

uhar
two blocks a and b are connected by a cord passes over a frictionless pulley. the mass of a is 1.2 kg and the magnitude of acceleration is 3.6
Thursday, March 21, 2013 at 4:58pm by ali

physics
In an Atwood machine m1 = 2.00 kg and m2 = 6.50 kg. The masses of the pulley and string are negligible by comparison. The pulley turns without friction and the string does not stretch. The lighter object is released with a sharp push that sets it into motion at vi = 2.20 m/s ...
Wednesday, October 21, 2009 at 10:54pm by blair

newton's law
Find the acceleration and tension in an Atwood's machine. Two different masses connected by a string over a pulley which is at rest.
Saturday, October 13, 2012 at 4:19pm by jack

Physics
A horizontal force of 100 N pushes a 12kg block up a frictionless incline that makes an angle 25degrees with the horizontal. What is the normal force that the incline exerts on the block and what is the acceleration of the block? I found part (a) which is the normal force. It ...
Monday, September 20, 2010 at 7:39pm by Anonymous

Physics
The drawing shows two crates that are connected by a steel (Young's modulus 2.0 x 1011 N/m2) wire that passes over a pulley. The unstretched length of the wire is 1.8 m, and its cross-sectional area is 1.4 x 10-5 m2. The pulley is frictionless and massless. When the crates are...
Saturday, October 26, 2013 at 10:14pm by Taylor

Physics
A 4 kg block slides down a frictionless incline making an angle of 60 with the horizontal. (a) What is the total work done on the block when the block slides 2 m (measured along the incline)? (b) What is the speed of the block after it has slid 1.5 m if it starts from rest? (...
Wednesday, November 3, 2010 at 11:59pm by Jenni

Physics
I've asked a similar qustion earlier and now I think I have drawn the correct free body diagram and go about solving the problem. The only thing is I do not know how to solve it. a block (mass m1) on a smooth horizontal surface, connected by a thin cord that passes over a ...
Tuesday, July 14, 2009 at 1:26pm by Physics

physics
A skier starts from rest at the top of a frictionless incline of height 20.0 m, as shown in the figure. As the bottom of the incline, the skier encounters a horizontal surface where the coefficient of kinetic friction between skis and snow is 0.23. the skier's speed at the ...
Friday, May 27, 2011 at 11:38pm by sarah

physics
A block of weight w = 25.0 N sits on a frictionless inclined plane, which makes an angle = 25.0 with respect to the horizontal, as shown in the figure. A force of magnitude F= 10.6 N , applied parallel to the incline, is just sufficient to pull the block up the plane at ...
Sunday, October 3, 2010 at 10:17pm by michelle

Physics
In a physics lab, a small cude slides down a frictionless incline, and elastically strikes a cube at the bottom of the inclince that is only one-half its mass. If the incline is 30 cm high and the table is 90 cm off the floor, where does each cube land? I got the V0 to be 2.43...
Sunday, December 7, 2008 at 1:22am by Steve

physics
need help with this question please a 1kg block starts at rest and slides down the incline. the coefficient of friction between the incline and the block is 0.1. The height of the incline is 2m, and the angle is 30 degrees. use energy consideration to find the block's speed at...
Sunday, November 15, 2009 at 9:27pm by sammeh

physicS
A skier is gliding along at 6.93 m/s on horizontal, frictionless snow. He suddenly starts down a 17.2 incline. His speed at the bottom is 29.7 m/s. What is the length of the incline? i understand that the equation used is gH= change in (v^2)/2 so i plug in 9.8H=(29.7^2-6.93^2...
Friday, October 8, 2010 at 4:19pm by Jason

physics
Two blocks each with weight w are held in place on a frictionless incline. In terms of w ans the angle theda of the incline, calculate the tension in a) the rope connecting the blocks; b) the rope that connects block A to the wall? a) it was wsin(theda) b) it was 2wsin(theda) ...
Thursday, November 16, 2006 at 3:36pm by Chris

Physics
If two different masses have the same kinetic energy, their momenta are: a. proportional to the squares of their masses b. proportional to their masses c. proportional to the square roots of their masses d. inversely proportional to their masses e. inversely proportional to ...
Monday, October 31, 2011 at 11:55am by Anonymous

Physics
A block of mass m1 = 6.25 kg on a frictionless plane inclined at angle θ = 30.7 is connected by a cord over a massless, frictionless pulley to a second block of mass m2 = 2.36 kg hanging vertically (Fig. 5-52). (a) What is the acceleration of the hanging block (choose ...
Sunday, October 16, 2011 at 11:47pm by Ty

physics
Two masses are slideing on a horizon frictionless surface. A 10 kg mass has a velocity of 9 m/s in the x direction and a 20 kg mass has a velocity of 12 m/s in the y direction .the masses collide and stick together, what is he final velocity of the composite mass? Draw and ...
Saturday, April 27, 2013 at 11:05am by monea

physics
a = 2d/t^2 = 2*15/(3*3) = 3.333 m/s2 g sin30 = 9.8 * 0.5 = 4.9 3.33 < 4.9 ====> therefore the incline is not frictionless.
Tuesday, October 9, 2012 at 9:09am by Anonymous

Phyics
How far does a 5-kg block with an initial speed of 3 m/s slide up a frictionless 28 incline plane?
Sunday, February 17, 2013 at 4:50pm by Amy

Help Math
A circular pulley with a radius of 10 cm is turning at 12 revolutions per minute. How fast is a point on the edge of the pulley rising when it is 5 cm higher than the center of the pulley?
Monday, January 9, 2012 at 4:32pm by Jordan

physics
In the frictionless apparatus m1=1.7kg What is m2 if both masses are at rest
Sunday, April 11, 2010 at 11:35pm by Anonymous

college physics
Two 2.5 kg masses are 2.5 m apart on a frictionless table. Each has +1.5 C of charge.
Thursday, March 10, 2011 at 3:28pm by Anonymous

physics
A block of weight w = 35.0 N sits on a frictionless inclined plane, which makes an angle theta = 27.0 degrees with respect to the horizontal. A force of magnitude F = 15.9 N, applied parallel to the incline, is just sufficient to pull the block up the plane at constant speed. ...
Friday, February 26, 2010 at 9:43am by Anonymous

Physics 203
A 4 kg block resting on a frictionless horizontal ledge is attached to a string that passes over a pulley and is attached to a hanging 2 kg block. The pulley is a uniform disk of radius 13.0 cm and mass 0.50 kg. (a) Find the speed of the 2 kg block after it falls from rest a ...
Wednesday, April 6, 2011 at 11:14am by Kayla

physics (newton's laws)
A 5.00 kg object placed on a frictionless, horizontal table is connected to a string that passes over a pulley and then is fasted to a hanging 9.00 kg object. Find the acceleration of the two objects and the tension in the string. First, there is just one force acting on the ...
Tuesday, February 20, 2007 at 1:05am by Eric (please help me)

physics
Three boxes are connected by cords, one of which (mA) wraps over a pulley having negligible friction on its axle and negligible mass and two boxes (mB & mC) are hanging. The masses are mA = 22.0 kg, mB = 40.0 kg, mC = 16.0 kg. -When the assembly is released from rest, what is ...
Thursday, February 8, 2007 at 8:16pm by **chocolatekisses

physics
Two crates are connected by a massless rope that passes over a pulley as shown in the figure below. If the crates have mass 32 kg and 80 kg, find their acceleration. If the system begins at rest, with the more massive crate a distance 11 m above the floor, how long does it ...
Saturday, February 21, 2009 at 1:55am by kj

Physics
A box is sliding up an incline that makes an angle of 17.0 with respect to the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.180. The initial speed of the box at the bottom of the incline is 1.40 m/s. How far does the box ...
Monday, September 17, 2007 at 11:51pm by NHS

Physics
A box is sliding up an incline that makes an angle of 12.0 with respect to the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.180. The initial speed of the box at the bottom of the incline is 1.30 m/s. How far does the box ...
Friday, October 21, 2011 at 5:26pm by Peter

Physics
A box is sliding up an incline that makes an angle of 13.0 with respect to the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.180. The initial speed of the box at the bottom of the incline is 1.80 m/s. How far does the box ...
Monday, October 29, 2012 at 3:10pm by Anonymous

College Physics
A 26.5 kg block (m1) is on a horizontal surface, connected to a 6.90 kg block (m2) by a massless string. The frictionless pulley has a radius R = 0.096 m and a moment of inertia I=0.080 kgm2 m2 is hanging straight down from the pulley over the edge of the surface. A force F = ...
Monday, March 5, 2012 at 12:19am by Anonymous

math (Calculus)
A circular pulley with a radius of 10 cm is turning at 12 revolutions per minute. How fast is a point on the edge of the pulley rising when it is 5 cm higher than the center of the pulley?
Monday, January 9, 2012 at 4:15pm by Jordan

physics
A 1.2kg object is placed on a frictionless table and is attached to a hanging mass using a light string over a frictionless pulley in a fletcher's trolley arrangement. The 1.20kg object accelerates along the table at 2.31m/s while the hanging object accelerates down at the ...
Wednesday, April 3, 2013 at 7:53pm by maddi

Physics
A block of weight = 25.0 sits on a frictionless inclined plane, which makes an angle = 34.0 with respect to the horizontal, as shown in the figure. A force of magnitude = 14.0 , applied parallel to the incline, is just sufficient to pull the block up the plane at constant ...
Sunday, October 17, 2010 at 6:18pm by Nikohl

Physics
A block of weight = 25.0 N sits on a frictionless inclined plane, which makes an angle = 34.0 with respect to the horizontal, as shown in the figure. A force of magnitude = 14.0 N, applied parallel to the incline, is just sufficient to pull the block up the plane at constant ...
Sunday, October 17, 2010 at 6:51pm by Eden

PHYSCS I
A mass m1 = 18.7 kg on a frictionless ramp is attached to a light string. The string passes over a frictionless pulley and is attached to a hanging mass m2. The ramp is at an angle of θ = 23.7 above the horizontal. m1 moves up the ramp uniformly (at constant speed). Find...
Thursday, March 1, 2012 at 6:08am by ADRAANA

physics
A mass m1 = 18.7 kg on a frictionless ramp is attached to a light string. The string passes over a frictionless pulley and is attached to a hanging mass m2. The ramp is at an angle of θ = 23.7 above the horizontal. m1 moves up the ramp uniformly (at constant speed). Find...
Friday, March 2, 2012 at 1:03pm by lissa

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