Laws of Motion

Question: The upper half of an inclined plane of inclination $\theta$ is perfectly smooth while the lower half is rough. A body starting from the rest at top comes back to rest at the bottom if the coefficient of friction for the lower half is given by

1) $\mu$ = sin $\theta$

2) $\mu$ = cot $\theta$

3) $\mu$ = 2 cos $\theta$

4) $\mu$ = 2 tan $\theta$

Solution:

Explanation: No Explanation

Friction Motion on Inclined Surface

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