PHY131H1 Study Guide - Midterm Guide: Centripetal Force, Tennis Ball, Friction

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PHY131H1 Full Course Notes

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Test 2 version1 solutions tuesday, march 16, 2010: a string is attached to the rear-view mirror of a car. A ball is hanging on the other end of the string. The car is driving along a circular path, at a constant speed. Which of the following lists gives all of the forces directly acting on the ball: tension, tension and gravity, tension and centripetal force, tension, gravity and centripetal force, tension, gravity, centripetal force and friction. Test 2 version1 solutions tuesday, march 16, 2010: block 1, of mass m1 = 1. 0 kg, is connected over an ideal (massless and frictionless) pulley to block 2, of mass m2 = Assume that the blocks accelerate as shown with an acceleration of magnitude a, and that the coefficient of kinetic friction between block 2 and the plane is = 0. 20. The velocity of each block at this moment is in the same direction as its acceleration.

Related Questions

Two blocks are connected by a massless rope. The rope passes over an ideal (frictionless and massless) pulley such that one block with mass m1 = 11.25 kg is on a horizontal table and the other block with mass m2 = 6.5 kg hangs vertically. Both blocks experience gravity and the tension force, T. Use the coordinate system specified in the diagram.

Part a) Assuming friction forces are negligible, write an expression, using only the variables provided, for the acceleration that the block of mass m1 experiences in the x-direction. Your answer should involve tension, T.

ivoryyellowjacket253

A block with mass m1 = 4.50 kg and a ball with mass m2 = 8.00 kg are connected by a light string that passes over a frictionless pulley, as shown in figure (a). The coefficient of kinetic friction between the block and the surface is 0.300.

Find the acceleration of the two objects and the tension in the string.

maroontortoise635

Two blocks are connected by a very light string passing over a massless and frictionless pulley (the figure ). Traveling at a constant speed, the 20.0- $\rm N$ block moves 72.0 to the right and the 12.0- ${\rm N}$ block moves 72.0 downward.

A. During this process, how much work is done on the 12.0- ${\rm N}$ block by gravity?

B. During this process, how much work is done on the 12.0- ${\rm N}$ block by the tension in the string?

C. During this process, how much work is done on the 20.0- ${\rm N}$ block by gravity?

D. During this process, how much work is done on the 20.0- ${\rm N}$ block by the tension in the string?

E. During this process, how much work is done on the 20.0- ${\rm N}$ block by friction?

F. During this process, how much work is done on the 20.0- ${\rm N}$ block by the normal force?

orangedeer877

PHY131H1 Study Guide - Midterm Guide: Centripetal Force, Tennis Ball, Friction

PHY131H1 Full Course Notes

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Physics: Principles with Applications

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