Question

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 1

(a) Mass remains same it does not change
So mass of boy 30 kg on earth = 30 kg on moon surface

(b) Weight of boy on moon becomes `1/6`

∴ 30 kg boy will weight `30 xx 1/6` = 5kg

1 kgf = 10 N ⇒ 5 × 10 N = 50 N

∴ Weight of boy on moon surface = 50 N