Two satellites of earth `S_(1)` and `S_(2)` are moving in the same orbit. The mass of `S_(1)` is four times the mass of `S_(2)`. Which one of the following statements is true?

Options

A. The period of `S_(1)` is four times that of `S_(2)`
B. The potential energies of earth and satellite in the two cases are equal
C. `S_(1)` and `S_(2)` are moving with the same speed
D. The kinetic energies of the two satellites are equal

Answer

C

Explanation

In the same orbit, orbital speed of satellite remains the same.