A body weighs 200 N on the surface of the earth. How much it weigh half way down to the centre of the earth ?
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Updated on : 2022-09-05
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Correct option is D)
Acceleration due to gravity at a depth d from surface of earth g′=g(1−Rd) ....(1) Where g = acceleration due to gravity at earth's surface Multiplying by mass 'm' on both sides of (1) ⟹mg′=mg(1−Rd)Here,(d=2R) =200(1−2RR)=2200=100N