38 vote
If mass of a man is 60 kg on earth, what will be his weight on the moon?
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If mass of a man is 60 kg on earth, what will be his weight on the moon?
1). 9.8 N
2). 600 N
3). 60 N
4). 98 N
1 answers
29 vote
Concept:
- As the mass of the moon is 1/100 times the mass of Earth and radius of the moon is ¼ times the radius of the Earth
- As a result, the gravitational attraction on the moon is about one-sixth when compared to that of the Earth
- The weight of an object depends on the value of acceleration due to gravity g
- Hence the weight of an object on the moon is 1/6th of the weight on the Earth
Calculation:
Weight on Earth = mg = 60 × 9.8 N
Weight on Moon:
$({W_m} = \frac{1}{6}{W_E} = \frac{1}{6} \times 60 \times 9.8 = 10 \times 9.8 = 98\;N)$
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