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Mass of mars is (1)/(9) and radius (1)/...

Mass of mars is `(1)/(9)` and radius `(1)/(2)` that of earth. A body weighs 54 kg on surface of the earth. Its wt. on the surface of mars will be:

A

50 kg

B

24 kg

C

30 kg

D

0 kg.

Text Solution

Verified by Experts

The correct Answer is:
B
`(W_(2))/(W_(1))=(mg_(1))/(mg_(1))=(g_(2))/(g_(1))=(M_(2))/(M_(1)) xx (R_(1)^(2))/(R_(2)^(2))=(1)/(9)*((2)/(1))^(2)=(4)/(9)`
`W_(2)=(4)/(3)W_(1)=(4)/(9)xx54=24 kg`.
Thus correct choice is (b).
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