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?
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weight is the force of gravity, F =ma,
where a =9.8m/s*on the earth. thus 80kg weight80kg×9.8m/s*784 newtons.
b)
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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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