Question
A body weighs 48 N on the surface of the earth. The gravitational force experienced by the body due to the earth at a height equal to one-third the radius of the earth from its surface is :
A body weighs 48 N on the surface of the earth. The gravitational force experienced by the body due to the earth at a height equal to one-third the radius of the earth from its surface is :
B. 27 N
aligned & W ^ = mg ^ = mg ( R R + h )^2 \\ & =48 ( R R + R 3 )^2 \\ & =48 9 16 =27 ~N aligned
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