A block rests on a rough adjustable incline

PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

A block rests on a rough adjustable incline. It is observed to start sliding when the incline angle reaches

32^\circ

. Which statement is correct for this situation? (a) The coefficient of static friction equals

\sin 32^\circ

.},{ (b) The limiting friction equals

mg\cos 32^\circ

. (c) The angle of friction is

32^\circ

. (d) The angle of friction is

58^\circ