a spaced question plz (1 Viewer)

[victorheaven]

A 150kg satellite in orbiting the earth at an altitude of 272km.Its orbital period is 90 mins.Given that the diameter of the earth is 12576km and its mass is 5.974*10(^24), calculate the centripital force on the satellite.

 

[falcon07]

It's just Newton's law of universal gravitation: F = GmM/r^2 = 6.67 x 10^-11 x 150 x 5.974 x 10^24 / (6288000 + 272000)^2 = 1388.9N