# Satellite. calculate radius of orbit

1. Oct 13, 2008

### evan b

1. The problem statement, all variables and given/known data

satellite is in a circular orbit around the earth. The period of the satellite is 25.4 hr. Calculate the radius of the orbit of the satellite. Data: Mass of the earth = 5.98 x 1024 kg

2. Oct 13, 2008

### Rake-MC

We have two equations we should use:

$$v = \frac{2\pi r}{T}$$

and

$$v = \sqrt{\frac{GM}{r}}$$

let them equal each other, then solve for r.