Question

It takes 20 s for a girl to climb up the stairs while a boy of same mass does the same in 15s,the ratio of their power is ​

Answer 1

Answer:

(1). For work done: work does not depend on time so work will be same for both.

W1 W2 1 1

W₁ : W₂ :: 1:1

(2). Power spent will be time dependent

W t P =

P₁ P2 t₂ t₁

⇒ P₁: P₂ :: 3:4

Answer 2

Answer:

Gud morning have a nice day