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The radius of earth is 6400 km and that ...

The radius of earth is 6400 km and that of mars is 3200 km the mass of earth is 10 times the mass of mars. An object weights 200 N on the surface of earth. Its weight on the surface of Mars is :

A

8 N

B

20 N

C

40 N

D

80 N

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The correct Answer is:
D
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