Question

One coolie takes 1 minute to raise a suitcase through a height of 2 m but the second coolie takes 30 s to raise the same suitcase to the same height. The powers of two coolies are in the ratio

(a) 1:3

(b) 2:1

(c) 3:1

(d) 1:2

Answer 1

Correct option (d) 1:2

Explanation:

power, p =  work done/Time taken

Here work done (= mgh) is same in both cases.