Q.

A body weight 500 N on the surface of the earth. How much would it weigh half way below the surface of the earth

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a

125 N

b

250 N

c

500 N

d

1000 N

answer is B.

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Detailed Solution

Weight on surface of earth,  mg=500 Nand weight below the surface of earth at d=R2mg'=mg1−dR=mg1−12=mg2=250 N
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A body weight 500 N on the surface of the earth. How much would it weigh half way below the surface of the earth