1. The problem statement, all variables and given/known data For this problem, use ratios only to obtain the weight of a person at the following distances. Assume the person weighs 980N on the surface of Earth. a) 128 000km above the surface of Earth b) 4.5 times the distance from the centre of Earth c) 745 400km from Earths Centre. 2. Relevant equations It basically evolves around: Fg = G x m1 x m2 r(squared) Fg = force of gravity G = constant gravitional force m1 and m2 = mass r = distance however, we are using a ratio so the teacher told us that it is: fg1 x r1(squared) = fg2 x r2(squared) r = distance fg = force of gravity 3. The attempt at a solution We started this yesterday in class and he told us to try it so I am not sure how to attempt this. I tried doing a FBD ( Free body diagram ) to make the question abit easier, but no success. Please help me.