Physics

If a 65 kilogram load was raised 6 meters in 60 seconds determine the minimum rated wattage of the motor needed to accomplish this assuming the motor is 75% efficient. give your answer in W.

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asked by Joe
  1. F = 65 * 9.81 Newtons
    energy = F*d = 65*9.81*6 Joules
    energy/unit time = power = 65*9.81*6/60 watts
    divide by .75
    65*9.81*6/(60*.75)

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    posted by Damon
  2. thanks so much!!!

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    posted by Joe
  3. You are welcome !

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    posted by Damon

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