Question

a planet of mass M has two identical moons, each of mass m. Moon 1 is in a circular orbit of radius r and Moon 2 is in a circular orbit of radius 2r. what is the ratio of magnitude of the gravitational force exerted by the planet on moon 1 to the magnitude of the gravitational foce exerted by the planet on moon 2?

Answer 1

Answer:

F=Gm1m2/r2

F proportional to r

F1/F2=(r2)2/(r1)2