Question

Select One Option Correct from the following : A satellite is moving with a constant speed V in a circular orbit about earth. An object of mass m is ejected from the satellite such that it just escapes from the gravitational pull of the earth. At the time of its injection, the kinetic energy of the object is
(A)$\frac{1}{2} mV ^{2}$
(B)$mV ^{2}$
(C)$\frac{3}{2} mV ^{2}$
(D)$2mV ^{2}$

Answer 1

The answer is (A), because

Kinetic energy= 1/2mv²