1. The problem statement, all variables and given/known data On Mars, a martian tells you he has 35.0kg of mass. What is his weight on mars? Mars Info: Mass= 6.42x10^23 Radius= 3.40x10^6 Radius of Orbit about sun= 2.30x10^11 2. Relevant equations FG=GM1M2/R^2 3. The attempt at a solution I tried using the equation above, but i got 4.28x10^13. Im pretty sure you have to find Gravity on mars and multiply it with the martians mass because mass to weight on earth is mass(kg) x 9.8 m/s^2 (Gravity on Earth) (Hopefully this is a better format than my last thread.