1. The problem statement, all variables and given/known data Pat's mass is 65.5 kg on Earth's surface. What would Pat's weight be at an altitude twice the radius of the Earth 2. Relevant equations Fg=G(m1)(m2)/r^2 G = 6.67X 10^-11 F=ma We are not given the numerical radius of the Earth 3. The attempt at a solution I tried to manipulate the formula a bit: (using the gravitational law) Fg = (65.5)x/ 2^2 And that got me nowhere. I also know the answer is 71.4N but how you get there is what I don't understand.