1. The problem statement, all variables and given/known data Ned climbs to the peak of Mt. Everest, the tallest peak on Earth at 8850 m above sea level. Ned's mass is 95 kg, the mass of Earth is 5.98 x 1024 kg, and Earth's radius is 6.37 x 106 m. What is the difference in Ned's weight when comparing his weight at the top of the mountain to his weight at sea level? 2. Relevant equations Fg = Gm1m2 / r2 g = Gm / r2 g = Fg / m 3. The attempt at a solution I think I have the field strength equal to 9.80 N using the equation g = Gm / r2 . After that I'm lost, I have no idea how to get his weight at the top of the mountain!