Physics
Chary
2016-04-14 09:52:12
A force of 110 N is applied horizontally to the handles of a lawnmower to move it at a speed of 0.80 m/s across a lawn. Find the power used to mow the lawn.
ANSWERS
Gum383
2016-04-14 14:40:50

Power is the rate of doing work, P = W/t. As is implied by the equation for power, a unit of power is equivalent to a unit of work divided by a unit of time. We calculate as follows: P = W/t = Fd/t where d/t = v P = Fv = 110(80) power is 8800 watts

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