A body of mass 2 kg is lying on a rough inclined plane of inclination

Question:

A body of mass $2 \mathrm{~kg}$ is lying on a rough inclined plane of inclination $30^{\circ}$. 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 = $0.2$.

Solution:

(a) 

(b)

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