A man weighing 50kg carries a mass of 10kg through a distance of 10m. Work done by the man is ...........
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The work done by the man, W = 5880 J
Explanation:
Given data,
The mass of the man, M = 50 kg
The man carries a mass, m = 10 kg
The displacement of the man, S = 10 m
The work done on the mass,
w = f x s
= 10 x 9.8 x 10
= 980 J
The work done by the man alone,
w = 50 x 9.8 x 10
= 4900 J
The total work done by the man,
W = 4900 J + 980 J
= 5880 J
Hence, the work done by the man, W = 5880 J
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