Question

A body of mass 2 kg is lying on a rough inclined plane of inclination 30°. Find the magnitude of the force parallel to the incline needed to make the block move (a) up the incline (b) down the incline. Coefficient of static friction = 0.2.

Answer 1

To make the block move up the incline, the force should be equal and opposite to the net force acting down the incline = μ R + 2 g sin 30°