Question 433: Gravitation

Question

Two satellites of earth, S1 and S2 are moving in the same orbit. The mass of S1 is four times the mass of S2. Which one of the following statements is true ?

Accepted Answer

Since orbital velocity of satellite is $$v = \sqrt {{{GM} \over r}} $$
it does not depend upon the mass of the satellite.
Therefore, both satellites will move with same speed.

Answer

The potential energies of earth and satellite in the two cases are equal.

Answer

S1 and S2 are moving with the same speed.

Answer

The kinetic energies of the two satellites are equal.

Answer

The time period of S1 is four times that of S2.

Gravitation

Two satellites of earth, S1 and S2 are moving in the same orbit. The mass of S1 is four times the mass of S2. Which one of the following statements is true ?

Choose the correct answer: