Question

A crane applies a force of 4000N to lift a giraffe 15m
how much energy is transferred?​

Answer 1

Answer:

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

Explanation:

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