A person gives a box a shove so that it slides up a ramp, then reverses its motion and slides down. The direction of the force of friction is A. Always down the ramp. B. Up the ramp and then down the ramp. C. Always down the ramp. D. Down the ramp and then up the ramp.

A person gives a box a shove so that it slides up a ramp, then reverses its motion and slides down. The direction of the force of friction is A. Always down the ramp. B. Up the ramp and then down the ramp. C. Always down the ramp. D. Down the ramp and then up the ramp.

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter2: Newton's Laws

Section: Chapter Questions

Problem 11P: . A person stands on a scale inside an elevator at rest (Figure 2.54). The scale reads 800 N. (a)...

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Question

A person gives a box a shove so that it slides up a ramp, then reverses its motion and slides down. The direction of the force of friction is
A. Always down the ramp.
B. Up the ramp and then down the ramp.
C. Always down the ramp.
D. Down the ramp and then up the ramp.

Definition Definition Force that opposes motion when the surface of one item rubs against the surface of another. The unit of force of friction is same as the unit of force.

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