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 time 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

`v_0=sqrt((GM)/r)`.