an elevator carries a weight of 2000 N to a height of 20m with a constant speed of 5m/s . find the power and work done
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First find time by S=D/T
5m/s=20/t
Therefore,
T=D/S
therefore,
T=20/5
Time=4sec
Now ,
Work= FxS
= 2000x20
= 40000J
Hence work done is 40000J
Power = W/T
= 40000/4
=10000W
Hence power applied is 10000W
5m/s=20/t
Therefore,
T=D/S
therefore,
T=20/5
Time=4sec
Now ,
Work= FxS
= 2000x20
= 40000J
Hence work done is 40000J
Power = W/T
= 40000/4
=10000W
Hence power applied is 10000W
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