A man weighing 80 kg carries a stone of 20 kg to the top of the building 30 m high. The work done by him is (g = 9.8 m/s

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answerhappygod
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A man weighing 80 kg carries a stone of 20 kg to the top of the building 30 m high. The work done by him is (g = 9.8 m/s

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A man weighing 80 kg carries a stone of 20 kg to the top of the building 30 m high. The work done by him is (g = 9.8 m/s2)

(A)80 J (B) 100 J (C) 980 J (D) 29,400 J
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