A block is at rest on an inclined plane. If the angle of inclination is increased to $37^{\circ}$, t

Question

A block is at rest on an inclined plane. If the angle of inclination is increased to $37^{\circ}$, the block just begins to slide. The coefficient of friction is

Professor PC Thomas Classes · Answer

At the angle of repose, $\mu = 	an 	heta$. So $\mu = 	an 37^{\circ} = \frac{3}{4} = 0.75$.