How long will it take to perform $440 J$ of work at the rate of $11 W$ ?

50 s

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40 s

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30 s

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20 s

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Solution

The correct option is B $40 s$
Power = 11W
Work = 440J
Power = Work/time
11 = 440/time
time = 40s

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How long will it take to perform 440J of work at the rate of 11W?

The correct option is B 40sPower = 11WWork = 440JPower = Work/time11 = 440/timetime = 40s

How long will it take to perform $440 J$ of work at the rate of $11 W$ ?

The correct option is B $40 s$
Power = 11W
Work = 440J
Power = Work/time
11 = 440/time
time = 40s