AP Physics

A fire engine must lift 30 kg of water a vertical distance of 20 m each second. What is the amount of power needed for the water pump for this fire hose?

Is the answer 5880W? If yes, why so?

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  1. potential energy per second = m g h = work done per second = power
    = 30 * 9.81 * 20
    5886 Joules/second or Watts
    =

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