A PUMP IS USED TO LIFT 150 of water from a well 50 m deep, in 25 s. If force of gravity on 1 kg is 10 N, find: WORK DONE
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Answer:
Given,
Mass = 150kg
Height = 50m
Time = 25sec
Force = 1kg = 10N, 150kg = 1500N
To find:-
Work done
By applying, F = ma
a = f/m
= 1500/150
= 10m/s^2
By applying, P. E = mgh
= 150×10×50
= 75000J.
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