calculate the power dispumed when a crane lifts a load of 20kg to a distance of 5m in 10s =(g=10m/s
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Important formulas :
Power = work / time
Work = force × displacement
Find the work
Work = force × displacement
= > Work = 20 kg × 5 m
= > Work = 100 kg m
To find Power
Power = work / time
= > power = 100 kgm / 10 s
= > power = 10 W
ANSWER:
The power is 10 W
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