An astronaut of mass m is working on a satellite orbiting the earth at a distance h from the earth.s surface . The radius of the earth is R, while its mass is M. The gravitational pull `F_G` on the astronaut is :

Options

A. Zero since astronaut feels weightless
B. `(GMm)/(R+h)^2 lt F_G gt (GMm)/R^2`
C. `F_G=(GMm)/(R+h)^2`
D. `0 lt F_G lt (GMm)/R^2`

Answer

C