Two satellites of masses m1 and m2 (m1 > m2) are revolving round the earth in circular orbits of radii r1 and r2 (r1 > r2) respectively. Which of the following statements is true regarding their speeds v1 and v2 ?
Answer & explanation
Correct answer: option 2
$v=\sqrt{\frac{G M}{r}}$ ; M = mass of earth
$\Rightarrow \frac{v_1}{v_2}=\sqrt{\frac{r_2}{r_1}}<1$