Question

A man lifts a mass of 20 kg to a height of 2.5 m.
Assuming that the force of gravity on 1 kg mass
is 10 N, find the work done by the man.
​

Answer 1

Answer:

Mass = 20 kg

h = 2.5 m

Force of gravity on a mass of 1 kg = 10 N

Force of gravity on a mass of 20 kg = 10 N \times× 20 = 200 N

W = F \times× h

W = 200 n \times× 2.5 m

W = 500 J

Answer 2

Answer:

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