# Angular velocity of a satellite

1. Oct 15, 2009

### crazuiee

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

A 5.00x10^3kg is orbiting the earth in a circular path. The height of the satellite above the earth is 8.00x10^2km what is the magnitude of the angular velociy?
Mass of earth: 5.98x10^24kg
radius of earth plus satellite:6380800m
G:6.674x10^-11

2. Relevant equations

Gm1m2/r^2=v^2/r

3. The attempt at a solution
I know the satellite isn't involved I keep getting 1.23x10-3 but it's not any of the choices for multiple choice. Can anyone explain how to do this problem

2. Oct 15, 2009

### the pro

do u mean with g the gravitacional forces

3. Oct 15, 2009

### crazuiee

G the gravitational constant

4. Oct 15, 2009

### the pro

try it with this gm1m2/r2=v2/r then get in to this gm1m2 x r = v2 x r2

5. Oct 15, 2009

### tiny-tim

Welcome to PF!

Hi crazuiee! Welcome to PF!

(try using the X2 and X2 tags just above the Reply box )
Leave out m2, and that's correct

(But did you add just 800 metres? )

Show us your full calculations if you want us to check for the mistake.

6. Oct 16, 2009

### the pro

oh right about m2 tim dident notice that