Question

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​

Answer 1

Energy = (Work done)/(time taken)

Energy used by Riya = $\dfrac{10×10}{10}$ = 10 J

Energy used by Priya = $\dfrac{10×10}{5}$ = 20 J

Hence, Priya spent more energy.

Answer 2

Answer:

20 j is correct