question_answer

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 FG on the astronaut is:   JEE Main Online Paper (Held On 10 April 2016)

A) \[{{F}_{G}}\frac{G{{M}_{m}}}{{{\left( R+h \right)}^{2}}}\]

B)              zero since astronaut feels weightless

C) \[\frac{G{{M}_{m}}}{{{\left( R+h \right)}^{2}}}<{{F}_{G}}<\frac{G{{M}_{m}}}{{{R}^{2}}}\]

D) \[0<{{F}_{G}}<\frac{G{{M}_{m}}}{{{R}^{2}}}\]