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Standard IX

Physics

Power

Am elevator l...

Question

Am elevator lifts a load of 1250 kg through a height of 20m in 5s. Calculate the power of the elevator.

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Solution

We have,
m= 1250kg
g= 10 m/s²
t = 5s
h=20m
work done = mgh
W = 1250 X 10 X 20
Work done = 250000 J
P = Work done/time taken
Power = 250000/5
Therefore, power = 50000 W

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Am elevator lifts a load of 1250 kg through a height of 20m in 5s. Calculate the power of the elevator.

We have, m= 1250kg g= 10 m/s² t = 5s h=20m work done = mgh W = 1250 X 10 X 20 Work done = 250000 J P = Work done/time taken Power = 250000/5 Therefore, power = 50000 W

We have,
m= 1250kg
g= 10 m/s²
t = 5s
h=20m
work done = mgh
W = 1250 X 10 X 20
Work done = 250000 J
P = Work done/time taken
Power = 250000/5
Therefore, power = 50000 W