Two classmates are seated next to each other, 2m apart.

Question

Two classmates are seated next to each other, 2m apart. They each have a mass of about 80kg. Set up a calculation which would tell you how much gravitational force each exerted on the other (you may solve for the force, but you don't have to).

Answer 1

F = GMm/r² = G(80)²/2² = 1600G where G is the universal gravitational constant.