1. An object was moved 12m along a rough horizontal surface. How much work is done by a frictionforce (cause by the roughness of the surface) of 5N? Note that friction is always opposite.2. A pole of 4.2m long (along + x-axis) is being acted upon by a force of 5N along the -x-axis. Findthe torque produces by this force if the pole is free to rotate about the origin.

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An object was moved 12m along a rough horizontal surface. How much work is done by a friction force (cause by the roughness of the surface) of 5N? Note that friction is always opposite.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter11: Angular Momentum

Section: Chapter Questions

Problem 80AP: The mass of a hoop of radius 1.0 m is 6.0 kg. It rolls across a horizontal surface with a speed of...

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Question

1. An object was moved 12m along a rough horizontal surface. How much work is done by a friction
force (cause by the roughness of the surface) of 5N? Note that friction is always opposite.
2. A pole of 4.2m long (along + x-axis) is being acted upon by a force of 5N along the -x-axis. Find
the torque produces by this force if the pole is free to rotate about the origin.

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