An artificial satellite of mass m is moving in a circular orbit at a height h equal to radius of the Earth from the Earth's surface. Suddenly due to internal explosion the satellite breaks into two parts of equal masses. One part of the satellite stops just after the explosion and then falls to the surface of the Earth. The increase in mechanical energy of the system (Satellite + Earth) due to explosion will be: (acceleration due to gravity on the Earth's surface is g )
(A) mgR
(B) mgR/2
(C) mgR/4
(D) 3mgR/4