Piya and Riya have weight 10 kg. they are climbing a Wall of 10 feet high .riya takes 10 seconds while priya takes 5 seconds who spend more energy? why
please give reason
give answer its very very urgenttt
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Answer:
Total work done by man in covering 20 steps =mgh=80×10×0.2×20=3200J
So, Power(P) =
Time taken
Work done
=
10
3200
=320Watt
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