Question

Two satellites of masses 80 kg and 120 kg revolve round a planet in circular orbits of radii 16 R and 9 R respectively, where R is radius of the planet. The ratio of the speeds of satellites will be
A. `(80)/(120)`
B. `(4)/(3)`
C. `(16)/(25)`
D. `(3)/(4)`

Answer 1

Correct Answer - D
`(v_(1))/(v_(2))= sqrt((GM)/(16R)xx(9R)/(GM))=(3)/(4)`