DP of a body at a Centre height is 200 the ke post by its when it just touched the surface of the Earth is
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11th
Physics
Gravitation
Variation in Value of Acceleration due to Gravity
A body weighs 200 N on the ...
PHYSICS
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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Acceleration due to gravity at a depth d from surface of earth
g
′
=g(1−
R
d
) ....(1)
Where g = acceleration due to gravity at earth's surface
Multiplying by mass 'm' on both sides of (1)
⟹mg
′
=mg(1−
R
d
)Here,(d=
2
R
)
=200(1−
2R
R
)=
2
200
=100N
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