1. The problem statement, all variables and given/known data three planets, X,Y and Z, are situated in 3 different places. distance between X and Y = 60 x 106 km distance between Y and Z = 50 x 106 km mass of X = 3.0 x 1024 kg mass of Y = 4.0 x 1024 kg mass of Z = 5.0 x 1024 kg find the net gravitational force on planet Z. 2. Relevant equations F = Gm1m2/r2 3. The attempt at a solution i am not sure where to start.