a crain can lift a body of mass 100 kg upwards with speed of 3m/s. find the power of engine
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Here is ur Answer....
1000watts
Explanation:
Given : m=600kg h=20 m
Time of operation t=2 min =120 s
Work done in lifting a box W=mgh=600×10×20=120000
Power required P=
t
W
=
120
120000
=1000 watts
Hope it helps you
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