a man lifts a mass of 20 kg to a height of 2.5m.Assuming that the force of gravity on 1 kg mass is 10 Newton find the work done by the man.
Answers
Answered by
7
Answer:
500J
Explanation:
given:-
mass m=20kg
Height h=2.5m
acceleration due to gravity g = 10N/kg or 10 m/s²
Work done by the man = W
W = mgh
W = 20×10×2.5
W = 500J
Answered by
2
Explanation:
Solution:-
W = force× displacement (f×d)
f = 20× 10 =200
=200 × 2.5
=50.0 joules
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