A woman lifts a 57 N weight a distance of 40 centimeters each time she does a particular exercise. It takes her 0.60 seconds to lift the weight. How much power does she supply for lifting the weight one time?

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Answer 1 · 2017-06-28T20:24:40

#36"W"# of power

40cm = 0.4m

First, we need to work out the work done, where #W=FDeltas=57*0.4=22.8 "J"#.

Now, to work out power we use the equation #"P"=("W")/("t")#, where #"P"=22.8/0.60=36"W"#.