Two satellites A and B move round the earth in the same orbit. The mass of B is twice the mass of A. which of the followings is correct ?
Answer & explanation
Correct answer: option 1
$v\left(=\sqrt{\frac{GM}{r}}\right)$ is independent of mass of the satellite.
|PE| = 2KE = $\frac{GMm}{r}$
⇒ PE & KE depend on these
∴ $\frac{v_1}{v_2}$ = 1, speeds are equal