How much power is needed to move the lawn mower with 120 N of force exerted?
Justin R asked:
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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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?
August 4th, 2009 at 11:28 am
P = Fv
P = 120(cos40)(1.75)
P = 161 W