An asteroid is located between Mars and Jupiter. It is thought that a planet once orbited here but was somehow destroyed and broken up into small chunks(perhaps by getting hit by a comet or asteroid). If an asteroid in this belt has an average distance from the sun of 500 * 10^6 km what would the orbital period be?
The Attempt at a Solution
I know you use the keplers formula
t^2 / r^3
and make it proportional. I know the distance between Mars and Jupiter and their orbital periods , how can that help me?