1. The problem statement, all variables and given/known data How much energy per unit mass (E/m) must you give a rocket to put it into a geosynchronous orbit three earth radii above the surface of the Earth? Radius of earth : 6380 km GM/r = 6.25 x 10^7 m^2/ s^2 2. Relevant equations U(r) = - GMm/r 3. The attempt at a solution I am not really sure where to start with this one. I think it should be at equilibrium 3radii up. 1/2mv^2 = Gm/r ??