Question

It takes 20s for a person A to climb up the stairs but another person B does the same in 15s. Compare their work done

Answer 1

they have to climb the same stairs so work done = 1:1

ANSWER = 1:1

PLEASE MARK AS BRAINLIST

Answer 2

Explanation:

work done by a in 20 s=1

work done in 1 s=1/20

work done by B in 15s=1

work done by B in 1 s=1/15

so let's compare

$\frac{1}{20} and \: \frac{1}{15} \\ \frac{3}{60} and \: \frac{4}{60}$

work done by B IS more than A

I know you are thinking that if both of them walk up on the same stairs then how B work is more than A

because in physics it is defined that for how much time you apply the force

so B apply less force but for more time

and A done opposite to it he apply more force but very quickly so work done by B IS greater