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May 28, 2016

Search: pulley

Number of results: 1,099

math
particles of mass 3m and 5 m hang one at each end of a light inextensible string which passes over a pulley.The system is released from rest with the hanging parts taunt and vertical.During the subsequent motion the resultant force exerted by the string on the pulley is of ...
March 4, 2011 by rob

Machanics
particles of mass 3m and 5 m hang one at each end of a light inextensible string which passes over a pulley.The system is released from rest with the hanging parts taunt and vertical.During the subsequent motion the resultant force exerted by the string on the pulley is of ...
March 4, 2011 by rob

Physics
an object of mass m1= 311 g on an inclined surface. The angle of the inclined surface is θ = 40o with the horizontal. The object m1 is connected to a second object of mass m2 = 355 g on the adjacent horizontal surface. Further, an external force of magnitude ІFext&#...
October 6, 2009 by Phoebe

KINEMATICS (PHY)
A pulley of mass mp , radius R , and moment of inertia about the center of mass Ic=12mpR2 , is suspended from a ceiling. The pulley rotates about a frictionless axle. An inextensible string of negligible mass is wrapped around the pulley and it does not slip on the pulley. The...
November 12, 2013 by rickross

physical science
Using Fig. 4.28 as an example, how much applied force would the man need to have to pull the block (weight or output force = 500 N) if the rope he is holding is 7 m long and the rope on the pulley is 2 m long? (Hint, the pulley is a simple machine)
January 3, 2013 by tina

physics
Assume that there is no friction between m2 and the incline, that m2 = 1.8 kg, m1 = 1.4 kg, the radius of the pulley is 0.10 m, the moment of inertia of the pulley is 3.6 kg m2, and θ = 27.0. Mass 1 is hanging vertically while mass 2 is on the incline. After mass 2 has ...
November 29, 2014 by Haley

physics
Assume that there is no friction between m2 and the incline, that m2 = 1.8 kg, m1 = 1.4 kg, the radius of the pulley is 0.10 m, the moment of inertia of the pulley is 3.6 kg m2, and θ = 27.0. Mass 1 is hanging vertically while mass 2 is on the incline. After mass 2 has ...
February 6, 2015 by Muhammad

Physics Classical Mechanics
A pulley of mass mp , radius R , and moment of inertia about the center of mass Ic=12mpR2 , is suspended from a ceiling. The pulley rotates about a frictionless axle. An inextensible string of negligible mass is wrapped around the pulley and it does not slip on the pulley. The...
November 7, 2013 by A

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 ...
January 27, 2008 by Kristen

physics
A stone is suspended from the free end of a wire that is wrapped around the outer rim of a pulley, as shown in the figure (see the figure ). The pulley is a uniform disk with mass 10.4 and radius 51.0 and turns on frictionless bearings. You measure that the stone travels a ...
May 13, 2012 by Anonymous

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 ...
December 4, 2010 by lucy

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 ...
October 17, 2011 by carlton

PHYSICS
NEED HELP ON THE ANSWER OF THIS PROBLEM THE EFFICIENCY OF THE PULLEY DECREASES WITH A COEFFICIENT OF FRICTION OF 2.0 THE EFFICIENCY OF THE PULLEY IS 60% WHAT WOULD YOU EXPECT THE EFFICIENCY TO BE IF THE COEFFICIENT OF FRICTION INCREASED TO 0.3
November 1, 2010 by AMBER

Physics
A 100 kg block is hanging from a frictionless pulley with another block of unknown mass on the other side of the pulley. It is released from a height of 1 meter above the ground. It then takes 0.9 seconds to reach the ground. What is the weight of the other mass?
April 30, 2016 by Alex

Physics
A 100 kg block is hanging from a frictionless pulley with another block of unknown mass on the other side of the pulley. It is released from a height of 1 meter above the ground. It then takes 0.9 seconds to reach the ground. What is the weight of the other mass?
May 1, 2016 by Alex

Physics
A 100 kg block is hanging from a frictionless pulley with another block of unknown mass on the other side of the pulley. It is released from a height of 1 meter above the ground. It then takes 0.9 seconds to reach the ground. What is the weight of the other mass? Thanks for ...
May 1, 2016 by Alex

physics
a mechanic uses a chain and bloc pulley to lift a 875-kg engine 4.0 m to the top of the garage. the downward force on the chain over the 4.0 m distance is 5.0 x 10^4 N. a)calculate the work done in raseing the motor b)how much useful work was done c)what is the inefficiency of...
January 12, 2013 by tyler

Physics
Instead of the frictionless wheel in problem 7, imagine that the rope is tied to a frictionless pulley with radius R but an unknown moment of inertia. If the pulley always has half as much kinetic energy as the block, what must be its moment of inertia? The block has a mass m.
November 17, 2015 by Matt

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 ...
April 10, 2011 by Liz

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 = ...
March 5, 2012 by Anonymous

physics
A 16lb block rests on a horizontal frictionless surface. A cord attached to the block, running horizontally, passes over a pulley whose diameter is 6in, to a hanging block weighing 16lb. The system is released from rest, and the blocks are observed to move 8.1ft in 5s. What is...
April 29, 2015 by I Don't Know

PHYSICS
two masses m1=400.g and m2 =600.g are connected with a light string which goes over a frictionless pulley of negligible mass. the two systems are released from rest. a) what is the acceleration of each mass? b) what is the tension force in the string? and c) what is the ...
July 21, 2014 by EMMA

Physics
A force vector F of magnitude 12N is applied to a FedEx box of mass m2=1kg. The force is directed up a plane tilted by theta=37 degrees. The box is connected by a cord to a UPS box of mass m1=3kg on the floor. The floor, plane, and pulley are frictionless, and the masses of ...
July 6, 2010 by Rick

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 ...
October 19, 2012 by some one

physics
A block of mass 4.44 kg lies on a frictionless horizontal surface. The block is connected by a cord passing over a pulley to another block of mass 6.55kg which hangs in the air , as shown above. Assume the cord to be light (massless and weightless) and unstretchable and the ...
October 5, 2013 by Shaun

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 ...
October 21, 2009 by blair

Physics
A string that passes over a pulley has a 0.373 kg mass attached to one end and a 0.620 kg mass attached to the other end. The pulley, which is a disk of radius 9.50 cm, has friction in its axle. What is the magnitude of the frictional torque that must be exerted by the axle if...
November 12, 2012 by Samantha

Physics
A mass m is hanging on a string that passes over a pulley and is then attached to another mass 3m that is resting on a horizontal table (along with the pulley). Neglect friction. Mass m is held montionless and is then released. When it has fallen a distance h, it will have a ...
January 12, 2010 by Bob

Physics
A block of mass 2.30kg is accelerated across a rough surface by a rope passing over a pulley. a) The tension in the rope is 12.4N, and the pulley is 11.2cm above the top of the block. The coefficient of kinetic friction is 0.415. Determine the acceleration of the block when x...
October 7, 2015 by Presley

physics- please !
A box weighing 65.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. Part a) Determine the force that the table exerts on the box if the weight hanging on the other side of the pulley weighs 24.0 N . Part ...
May 5, 2012 by emma

physics- please help !
A box weighing 65.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. Part a) Determine the force that the table exerts on the box if the weight hanging on the other side of the pulley weighs 24.0 N . Part...
May 6, 2012 by emma

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 ...
July 12, 2013 by SURAJ

Physics
An object of mass m1= 203 g is on an inclined surface, that is increasing. The angle of the inclined surface is θ = 40o with the horizontal. The object m1 is connected to a second object of mass m2 = 598 g on the adjacent horizontal surface via a pulley at the base of the...
October 6, 2009 by Sarah

Physics
Question: Two masses 2.2 Kg and 3.2 Kg connected by a rope over a massless and frictionless pulley hang at 1.8 m above the ground on either side of the pulley. The pulley is 4.8 m above the ground. What is the maximum height that the 2.2 Kg weight will rise to after the system...
October 15, 2009 by Ian

College Physics
A string that passes over a pulley has a 0.331g mass attached to one end and a 0.625g mass attached to the other end. The pulley, which is a disk of radius 9.50cm , has friction in its axle. What is the magnitude of the frictional torque that must be exerted by the axle if the...
November 24, 2010 by Ree

Physics
3 kg object is fastened to a light spring with the intervening cord passing over a pulley. The pulley is frictionless and it's inertia may been neglected. The object is released from rest when the spring is unstretched. If the object drops 10 cm before stopping find the spring...
February 5, 2015 by Bill

Physics
The diagram for this problem is a pulley. On the left end Box 1 is sitting on a table and Box 2 is attached sitting on top of Box 1 and is attached to the string for the pulley. The right side has the string attached to Box 3 which is lifted off the table. A massless rope ...
June 21, 2012 by Caitlyn

Physics
1) Design a gear system using 12, 34 and 36 teeth gears that achieve a gear ratio of 13.5:1 and has the top and bottom gear spinning in opposite directions. 2) For a pulley system with 8 supporting strands, how far would you have to pull the rope to lift a 125 kg object 1.0 ...
January 5, 2016 by Lea

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 ...
October 8, 2009 by Matthew

Physics
A 9.00 kg mass is connected by a light cord to a 1.00 kg mass on a smooth surface as shown in the figure. The pulley rotates about a frictionless axle and has a moment of inertia of 0.300 k∙m2 and a radius of 0.500 m. Assuming that the cord does not slip on the pulley, ...
November 6, 2012 by Kayla

Physics
The efficiency of a pulley system is 47 percent. The pulleys are used to raise a mass of 47 kg to a height of 7.0 m. The acceleration of gravity is 9.81 m/s 2 . What force is exerted on the rope of the pulley system if the rope is pulled for 28 m in order to raise the mass to ...
November 18, 2015 by Madi

physics
The efficiency of a pulley system is 81 percent. The pulleys are used to raise a mass of 85 kg to a height of 8.5 m. The acceleration of gravity is 9.81 m/s^2. What force is exerted on the rope of the pulley system if the rope is pulled for 14 m in order to raise the mass to ...
February 20, 2012 by Anonymous

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....
October 24, 2012 by Steeve

physics
Procedure: 1) Set up the force table. Mount the first pulley on the 10 degree mark and hang the 200 g the mass of the hanger. then mount the second pulley on the 100 degree mark and hang the 270 g. including the weight of the hanger.Determine the resultan graphically.
May 7, 2010 by Anonymous

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

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

physics
A box weighing 69 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. Determine the force that the table exerts on the box if the weight hanging on the other side of the pulley weighs one of the following: a)...
October 8, 2009 by DJ

Physics
Two pulleys are connected by a belt that causes one pulley to rotate (via friction) as it is driven by the first pulley. The belt turns around the pulleys without slipping on either one. rA is 10.0 cm and rB is 25.0 cm. If wheel A starts from rest and increases its rate of ...
May 5, 2014 by TLP

Need help at this very minute with physics
In Figure 10-53, two blocks, of mass m1 =400 g and m2 =600 g, are connected by a massless cord that is wrapped around a uniform disk of mass M = 500 g and radius R = 12.0 cm. The disk can rotate without friction about a fixed horizontal axis through its center; the cord cannot...
December 1, 2006 by John

physics B
This is the first question on the 2003 ap physics b exam. I need help with part e. It shows a diagram of a pulley with two students. student A is on the ground with a mass of 70kg holding on to the pulley while student B is in the air with a mass of 60. Question: with what ...
October 22, 2008 by kelley

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...
October 26, 2013 by Taylor

physics
Two blocks are tied together with a string as shown in the diagram.(There is a block on a horizontal incline, its mass is 1.0kg, there is a rope connecting that block to a pulley which then connects to another block that is 2.0kg. The angle of the incline is 30 degrees) If ...
October 22, 2010 by mercedes

Physics
Cn u plz gv explaination 2 d solutions bit by bit in brief? Cz i really dnt understand hw 2 apply d formula 2 solve it when i revise nw.Thnkz. [g=10 m/s^2 ]a particle P of mass m kg on a rough horizontal table. The coefficient of friction between P & the table is 1 /4. The ...
September 29, 2008 by Ling

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

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 ...
April 6, 2011 by Kayla

physics
A uniform string fixed at one end passes over a pulley and then is attached to a hanging object. The string is horizontal between the fixed end and the pulley. When you let the hanging object oscillate in the vertical plane, the fundamental frequency of the horizontal part of ...
August 6, 2008 by Elisa

Calc 2
A 3-lb bucket containing 20- lb of water is hanging at the endof a 20-ft rope that weights 4 -oz / ft. The other end of the ropeis aattached to a puley. How mauch work is required to wind thelenght of the rope onto the pulley, assuming that the rope iswound onto the pulley at ...
January 28, 2015 by Laua

physics-frictional torque
A string that passes over a pulley has a 0.321 kg mass attached to one end and a 0.655 kg mass attached to the other end. The pulley, which is a disk of radius 9.50 cm, has friction in its axle. What is the magnitude of the frictional torque that must be exerted by the axle if...
November 27, 2010 by Cerra

physics HELPP!!!!!!!
A 6.00 kg mass is connected by a light cord to a 1.00 kg mass on a smooth surface as shown in the figure. The pulley rotates about a frictionless axle and has a moment of inertia of 0.400 k∙m2 and a radius of 0.700 m. Assuming that the cord does not slip on the pulley, ...
November 14, 2012 by anon

physics
A pulley is attached to the ceiling (as shown in the figure below). Spring scale A is attached to the wall and a rope runs horizontally from it and over the pulley. The same rope is then attached to spring scale B. On the other side of scale B hangs an W = 75-N weight. What ...
February 17, 2011 by mayrel

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

Physics
The weight of the block at rest on a frictionless table is 305 N. This block is attched by a string to another mass that hangs off a frictionless pulley. And the weight of the hanging block is 125 N. Ignoring all frictional effects and assuming the pulley to be massless, find...
January 17, 2012 by Anonymous

physics
A string that passes over a pulley has a 0.375 kg mass attached to one end and a 0.630 kg mass attached to the other end. The pulley, which is a disk of radius 9.50 cm, has friction in its axle. What is the magnitude of the frictional torque that must be exerted by the axle if...
January 21, 2015 by Johnathan

College Physics
Two crates are connected by a massless rope that passes over a pulley. If the crates have mass 33 kg and 82 kg, find their acceleration. If the system begins at rest, with the more massive crate a distance 12 m above the floor, how long does it take for the more massive crate ...
October 13, 2014 by Shannon

physics
A 12 kg mass on a horizontal friction-free air track is accelerated by a string attached to a 100 kg mass hanging vertically from a pulley as shown. Compare the accelerations when the masses are interchanged, that is, for the case where the 100 kg mass dangles over the pulley...
June 3, 2007 by naomi

math- bc calc
a building is 36 ft tall. A pulley is attached to the top of the building. A rope is looped through the pulley. One end of the rope is attached to the lantern that hangs vertically parallel to the side of the building. The rope passes up vertically from the lantern, through ...
October 29, 2014 by Danielle

Physics
Note: I am in Algebra-based Physics Two 35.0 N weights are suspended at opposite ends of a rope that passes over a light, frictionless pulley. The pulley is attached to a chain that is fastened to the ceiling. Start solving this problem by making a free-body diagram of each ...
September 30, 2006 by Josie

physics
A pulley system reduces the effort of lifting a big bucket of water from a shallow well. The 100-newton bucket is lifted to a height of 5 meters with an unknown input force. If 50 meters of rope is pulled to lift the bucket the desired height and the percent efficiency of the ...
May 1, 2012 by genesis

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 ...
November 16, 2009 by m2a

Physics mechanics
A piece of cord 2.5m is connected between two points 2m apart horizontally. A massless pulley is placed on the cord and a force 20N at angle - 80 degrees is applied to it. 1. Show that when the pulley reaches a state of rest, the angle that the positions of the cor make with ...
November 3, 2013 by Faith

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 ...
February 21, 2009 by kj

Physics
In Figure 5-66, a force F of magnitude 13 N is applied to a FedEx box of mass m2 = 1.0 kg. The force is directed up a plane tilted by θ = 37. The box is connected by a cord to a UPS box of mass 3.0 kg on the floor. The floor, plane, and pulley are frictionless, and the ...
February 20, 2013 by Rachel

physics
The pulley in the figure represents different pulleys with outer radius and inner radius indicated in the table. The horizontal rope is pulled to the right at a constant speed that is the same in each case, and none of the ropes slips in its contact with the pulley Rank these ...
August 8, 2011 by help123

phsyics
A cart of mass M1 = 6 kg is attached to a block of mass M2 = 3 kg by a string that passes over a frictionless pulley. The system is initially at rest and the table is frictionless. After the block has fallen a distance h = 1 m: What is the work Ws done on the cart by the ...
March 27, 2006 by Jamila

PHYSICS - plz help
A house painter uses a chair and pulley arrangement to lift himself up the side of a house. The painter's mass is 69.2 kg and the chair's mass is 24.0 kg. With what force must he pull down on the rope in order to accelerate upward at 0.379 m/s2? The rope that the painter pulls...
October 2, 2009 by Anonymous

maths
A rope AB attached to a small block of neglible dimensions and passes over apulley C so that its free end hangs 1.5 metres above ground. When block rests on the floor. The end A of the rope is moved horizontally in astraight line by a man walking at a uniform velocity V=...
March 21, 2014 by ramya

Physics
The two masses shown in the figure are each initially 1.80 m above the ground, and the massless frictionless pulley is fixed 4.8 m above the ground. (mA = 1.5 kg and mB = 3.4 kg.) What maximum height does the lighter object reach after the system is released? [Hint: First ...
September 21, 2014 by Megan

Science
Ms. Sue please help. 8. Which would best reduce the amount of energy needed to pull a wagon up a ramp? (1 point) increasing the slope of the ramp reducing the friction between the wagon wheels reducing the length of the wagon handle increasing the friction between the wagon ...
June 6, 2014 by Austin

physics
Masses 19 kg and 9 kg are connected by a light string that passes over a frictionless pulley as shown in the figure ( The figure shows the 19 kg block on the table connected by a string through a pulley which is connected to the 5 kg block hanging off the table). The ...
November 10, 2013 by james

physics
Masses 19 kg and 9 kg are connected by a light string that passes over a frictionless pulley as shown in the figure ( The figure shows the 19 kg block on the table connected by a string through a pulley which is connected to the 5 kg block hanging off the table). The ...
November 10, 2013 by james

Physics
An object of mass M rests on a horizontal table and is connected to a cable that passes over a pulley and is then fastened to a hanging object with mass m. There is static friction between the horizontal surface and mass M. The coefficient of static friction is 0.75 and M=15. ...
October 22, 2009 by Nikita

Physics
An green hoop with mass mh = 2.4 kg and radius Rh = 0.14 m hangs from a string that goes over a blue solid disk pulley with mass md = 2.2 kg and radius Rd = 0.1 m. The other end of the string is attached to a massless axel through the center of an orange sphere on a flat ...
November 10, 2014 by stewart

physics
A cat is stuck in a tree. You are designated with the job to get it out, yet you do not want to climb the tree, because you may get stuck as well. Instead you set up a pulley system. A rope (consider it massless) runs from the seat you sit on over an ideal pulley and then to ...
March 18, 2013 by Nathalia

Physics
Two blocks are tied together with a string as shown in the diagram.(There is a block on a horizontal incline, its mass is 1.0kg, there is a rope connecting that block to a pulley which then connects to another block that is 2.0kg. The angle of the incline is 30 degrees) If ...
October 22, 2010 by Mercedes

physics
Two blocks (one of which is on a ramp) are attached via a string looped over a pulley. The block on the incline has a mass of 5.0 kg; the block hanging downward (suspended by the pulley) has a mass of 7.0 kg. Assume the usual things (non-stretchy massless string, frictionless ...
October 6, 2011 by Sam

physics
Two blocks (one of which is on a ramp) are attached via a string looped over a pulley. The block on the incline has a mass of 5.0 kg; the block hanging downward (suspended by the pulley) has a mass of 7.0 kg. Assume the usual things (non-stretchy massless string, frictionless ...
October 6, 2011 by Sam

Physics
Two blocks (one of which is on a ramp) are attached via a string looped over a pulley. The block on the incline has a mass of 5.0 kg; the block hanging downward (suspended by the pulley) has a mass of 7.0 kg. Assume the usual things (non-stretchy massless string, frictionless ...
October 6, 2011 by Sam

Physics
Two blocks (one of which is on a ramp) are attached via a string looped over a pulley. The block on the incline has a mass of 5.0 kg; the block hanging downward (suspended by the pulley) has a mass of 7.0 kg. Assume the usual things (non-stretchy massless string, frictionless ...
October 6, 2011 by Sam

Physics
How would you use a pulley system with one rope to pull at a single item at two points simultaneously? The free ropes of two block and tackle pulley systems could be joined to pull an object in two places. Or you could just hang a rope over two pulleys on a ceiling, tie both ...
June 13, 2007 by Jason

physics
Assume that there is no friction between m2 and the incline, that m2 = 2.4 kg, m1 = 1.2 kg, the radius of the pulley is 0.10 m, the moment of inertia of the pulley is 4.8 kg m2, and θ = 25.0. a) Find the combined mechanical energy of both masses the instant the masses ...
November 26, 2014 by May

Physics
In the configuration shown (10m incline for m1 and 8m vertical length for m2 with a spring under it, both masses are linked by a rope and a pulley at the top), the 52.0 N/m spring is unstretched, and the system is released from rest. The mass of the block on the incline is m1...
October 25, 2012 by Alphonse

Physics
In the configuration shown (10m incline for m1 and 8m vertical length for m2 with a spring under it, both masses are linked by a rope and a pulley at the top), the 52.0 N/m spring is unstretched, and the system is released from rest. The mass of the block on the incline is m1...
October 25, 2012 by Alphonse

mechanics 12
A 1.8 kg breadbox on a frictionless incline of angle θ = 37 is connected, by a cord that runs over a pulley, to a light spring of spring constant k = 120 N/m, as shown in the figure below. The box is released from rest when the spring is unstretched. Assume that the ...
November 2, 2012 by kunal

Physics (torque, if possible)
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. The flywheel is a solid disk with a mass of 80.0kg and a dimaeter of 1.25m. It turns on a frictionless axle. Its pulley has much ...
April 18, 2007 by Anderson

Physics
A pair of masses are attached by a string that runs over a pulley. The larger mass is on a frictionless incline that makes an angle of 18 degree with the ground. the smaller mass is hanging in the air off the pulley. the larger mass is given an initial velocity of 1.7 m/s up ...
May 11, 2012 by Jay

Physics
You pull downward with a force of 27 N on a rope that passes over a disk-shaped pulley of mass 1.3 kg and radius 0.075 m. The other end of the rope is attached to a 0.61 kg mass. Find the tension in the rope on both sides of the pulley. I found that the tension on the side you...
March 21, 2010 by Mary

Physics-Mechanics
A pulley is massless and frictionless. 3 kg, 2 kg (on the left), and 6 kg (on the right) masses are suspended What is the tension T1 in the string be- tween the two blocks on the left-hand side of the pulley? Can I solve this like if it was two masses? My prof gave an example ...
September 22, 2010 by Genevieve

Integrated Physics and Chemistry
What is IMA? I'm given a picture of a pulley system and I was told to find the IMA of that pulley system. Buuut i don't know how to find the IMA, there are no numbers given in the picture. So what is IMA and how do I find it?
January 28, 2011 by Katy

physics
The system shown in the figure below consists of a mass M = 3.5-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 m = 2.2-kg block. The pulley is a uniform...
January 22, 2015 by Johnathan

calculus
a man on a dock is pulling in a boat by means of a rope attached to the bow of the boat 1ft above the water level and passing through a simple pulley located on a dock 8ft above the water level. if he pulls in the rope at a rate of 2ft/sec, how fast is the boat approaching the...
October 10, 2012 by Anonymous

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