A person gives a box a shove so that it slides up a ramp, then reverses its
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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.
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Related Book For
College Physics A Strategic Approach
ISBN: 9780321595492
2nd Edition
Authors: Randall D. Knight, Brian Jones, Stuart Field
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