Question

Scientists want to place a 4400 kg satellite in orbit around Mars. They plan to have the satellite orbit at a speed of 2670 m/s in a perfectly circular orbit. Here is some information that may help solve this problem:
mmars = 6.4191 x 1023 kg
rmars = 3.397 x 106 m
G = 6.67428 x 10-11 N-m2/kg
1) What is the force of attraction between Mars and the satellite?
2 What speed should the satellite have to be in a perfectly circular orbit?
3 How much time does it take the satellite to complete one revolution?

Answer 1

you can calculate radius of satellite of eqn centripetal force =gravitational force \[mv ^{2} / r = GMm/ r ^{2}\]
when you will find radius of orbit u can calculate 1)
2) speed already given in question.
3) time taken in one revolution=\[t=2\pi r/v\]

Answer 2

here r is radius of satellite on mars radius.

Answer 3

M mass of mars m mass of satellite.