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Power, Force and Velocity

how much work...

Question

how much work can a two horsepower motor do in one hour?

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Solution

1 hp = 745.7 watt
2 hp = 1491.4 watt
1 hr = 3600 s
Therefore, work done in 1 hr = power Ã— time
=> W = 1491.4 Ã— 3600 = 5369040 J

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