Question

a) mass of an object is 80 kg. what is its weight on the earth?
(b) An object weighs 100N when measured on the surface of the earth. What would be its weight when measured on the surface of moon?

Answer 1

a) weight = mg = 80×9.8 =784 kg wt

b) weight on earth = 6× weight on moon

100 = 6× weight on moon

weight on moon = 100÷6

weight on moon = 16.67 kg

{Just a small correction, I think that in question b weight on earth should be 100 kg and not 100 N as Newton(N) is the unit of force.}

Answer 2

Answer:

A) weight = mg = 80 × 9.8 = 784 kg wt

B) weight on earth = 6× weight on moon.

100 = 6× weight on moon

Weight on moon = 100 ÷ 6 = 16.67 kg (ans)

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