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Physics
Physics
Problem
If the distance between the centres of Earth and Moon is D and mass of Earth is 81 times that of Moon. At what distance from the centre of Earth gravitational field will be zero ? (A)
D
2
\frac{D}{2}
2
D
(B)
2
D
3
\frac{2D}{3}
3
2
D
(C)
4
D
5
\frac{4D}{5}
5
4
D
(D)
9
D
10
\frac{9D}{10}
10
9
D
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