17 Two satellites. A and B, of equal mass m, orbit the Earth at an altitude of R and 3R respectively, where R is the radius of the Earth in km. Which row of the table is a correct comparison of the satellites' gravitational potential energy U and orbital velocity v? Gravitational Potenffa! Energy Orbital Velocity U o A. 0A = 3:13 12;; = divs UA = 2UB 12;; = @195 D. Provided answer is D Why? providingwith working please