Physics

Problem

A body of mass m is situated at distance

4R_e

above the Earth's surface, where

R_e

is the radius of Earth how much minimum energy be given to the body so that it may escape :- (A)

mgR_e

(B)

2mgR_e

(C)

\frac{mgR_e}{5}

(D)

\frac{mgR_e}{16}