The acceleration of a body due to the attraction of the earth (radius R) at a distance 2R form the surface of the earth is (g=acceleration due to gravity at the surface of the earth)

Options

A. `g/9`
B. `g/3`
C. `g/4`
D. `g`

Answer

A

Explanation

`(g')/(g)=(R/(R+h))^(2)=(R/(R+2R))^(2)=1/9 :. g'=g/9`