How much power is needed to move the lawn mower with 120 N of force exerted?

A person exerts a force of 120 N at an angle of 40 degrees on a lawn mower handle as they push the mower. If the mower moves at 1.75 m/s, how much power is used by the person to move the mower?

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One Response to “How much power is needed to move the lawn mower with 120 N of force exerted?”
  1. Margaret says:
    July 22, 2009 at 12:20 am

    P = Fv
    P = 120(cos40)(1.75)
    P = 161 W


 
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