question_answer

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?

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