two person do the same amount of work the first person does it in 10 s and the second in 20 s find the ratio of the power used by the first person to that by the second person
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Answer is 2:1......best of luck
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P=w÷t
P1÷P2=w1÷w2×t1÷t2
P1÷P2=t1÷t2=10÷20=1÷2
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