1. The problem statement, all variables and given/known data A communications satellite with a mass of 240 kg is in a circular orbit about the Earth. The radius of the orbit is 41200 km as measured from the center of the Earth. (a) Calculate the weight of the satellite on the surface of the Earth. The final answer is in kN 2. Relevant equations F=Gm1m2/r2 3. The attempt at a solution So first i found out the gravitational force using the radius given and got 56.40 N and substituted tha for F and solved this time with the earth's radius. I got 5.74 N but was wrong.