The upper portion of an inclined plane of inclination is smooth and the lower portion…

PHYSICS · Subjective · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics

Problem

The upper portion of an inclined plane of inclination α\alpha is smooth and the lower portion is rough. A particle slides down from rest at the top and just comes to rest at the foot. If the ratio of smooth length to rough length is m:nm:n, find the coefficient of friction.

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