A horizontal force is applied at the upper surface of a uniform cube of mass and side

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

Problem

A horizontal force

F=\frac{mg}{3}

is applied at the upper surface of a uniform cube of mass

m

and side

a

, which rests on a rough horizontal surface with

\mu=\frac12

. The distance between the lines of action of

mg

and the normal reaction is (1)

\frac{a}{2}

(2)

\frac{a}{3}

(3)

\frac{a}{4}

(4) None of these