ICSE Class 7 Physics Question 8 of 23

Motion — Question 8

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Question

Question 8

The weight of a body of mass 6.0 kg on moon is 10 N. If a boy of mass 30 kg goes from earth to the moon surface, what will be his

(a) mass,

(b) weight?

Answer

(a) Mass of boy = 30 kg on moon surface as mass remains constant. Mass of a body does not change with place.

(b) Weight of body of mass 6.0 kg on moon surface = 10 N

Weight of body of mass 30 kg on moon surface = 106.0\dfrac{\text{10}}{\text{6.0}} x 30 = 50 N

So, weight of boy of 30 kg on moon surface = 50 N.