Question

a man of 70 kg carries a 30 kg box to the top of building 20 m high calculate work done ( g=10m²)
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Answer 1

Answer:

Given :

Mass = 70 kg + 30 kg

         = 100 kg

g = 10 m^2 = 100 m

h = 20 m

Work done = mgh

Work done = 100 * 100 * 20

                   = 2,00,000 J