# Math Help - velocity

1. ## velocity

In a computer simulation, a satellite orbits around Earth at a distance from the Earth's surface of miles. The orbit is circular, and one revolution around Earth takes 10.5 days. Assuming the radius of the Earth is 3960 miles, find the linear speed of the satellite. Express the answer in miles per hour to the nearest whole mile.

The radius is 13,960 I believe. I'm not sure what to do after that.. Thanks