Compare the gravitational force on an 11 kg mass at the surface of the Earth (with radius 6.3 X 10^6 m and mass 6 X 10^24 kg) with that on the surface of the Moon (with mass 1/81.3 ME and radius 0.27 RE). What is the force on the Earth? What is the force on the moon?

Answer 1

Weight = G m M/R^2,
where m is the mass of the object and M is the mass of the earth or moon. R is the radius of the earth or moon

The weight on the moon is earth weight times
(1/83)/(0.27)^2 = 0.165

On earth, W = M g = 108 N
On the moon, it is 0.165 times that.

Answer 2

this is wrong