Physics problem... Stumped

Assuming the satellite is geosynchronous (not moving with respect to the earth's rotation)

f = GmM/r^2

ma = GmM/r^2

divide by m

a = GM/r^2

Look up G and M, r is the distance to the surface + the radius of the earth (offhand I don't know if its significant). Mass of the satellite is irrelevant because it was cancelled by division.

If its not geosynchrnous, you don't have enough information (need the speed of the satellite)

I figured it was a constant.

The acceleration is constant, but only near the surface of the earth is it close to 9.8 m/s^2 (or 32 feet/s^2)