The upper half of an inclined plane with inclination $\phi$ is perfectly smooth while the lower half is rough. A body starting from rest at the top will again come to rest at the bottom if the coefficient of friction for the lower half is given by

Question

Aicharya · Accepted Answer

$m g s \sin \phi=\mu m g \cos \phi \cdot \frac{s}{2}$

The upper half of an inclined plane with inclination $\phi$ is perfectly smooth while the lower half is…

Solution