A body of weight is projected vertically upwards from the earth's surface to reach a height above the earth which is equal to nine times the radius of the earth. The weight of the body at that height will be [2023]

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Solution

Q.
A body of weight $W$ is projected vertically upwards from the earth's surface to reach a height above the earth which is equal to nine times the radius of the earth. The weight of the body at that height will be [2023]

1 $\frac{W}{91}$

2 $\frac{W}{100}$

3 $\frac{W}{9}$

4 $\frac{W}{3}$

Ans.
(2)

$g' = \frac{G M}{{(10 R)}^{2}} = (\frac{g}{100})$

$W' = (\frac{W}{100})$

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