An astronaut of mass m is working on a satellite orbitting the earth at a distance h from the earth's surface the radius fo 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) lt ("GMm")/(R^(2))`
C. `F_(G) = ("GMm")/((R + h)^(2))`
D. ` 0 lt F_(G) lt ("GMm")/(R^(2))`

Answer

C

Explanation

According to universal law of Gravitation,
Gravitational force F = `(GMm)/((R + h)^(2))`
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