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The radius of the Earth is about 6400 km...

The radius of the Earth is about 6400 km and that of Mars is about 3200 km. The mass of the Earth is about 20 times the mass of Mars. An object weighs 500 Non the surface of Earth. Its weight on the surface of Mars would be

A

100 N

B

200 N

C

150 N

D

20 N

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