A 17.0-kg satellite has a circular orbit with a period of 2.31 h and a radius of 9.10×106 m around a planet of unknown mass. If the magnitude of the gravitational acceleration on the surface of the planet is 8.10 m/s2, what is the radius of the planet?

Question

radius = m

Answer 1

figure the centripetal acceleration v^2/r

where v=2PIr/T you are given r as 9.10E6

now set that acceleration equal to

8.10*(rp/9.1E6)^2 and solve for the radius of the planet rp.

Answer 2

What is Plr?

Answer 3

Which values are solutions to the inequality below? Check all that apply. sqrtx