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**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 of **

### Options

(a) 1 : 2

(b) 1 : 3

(c) 2 : 1

(d) 3 : 1

### Correct Answer:

1 : 2

### Explanation:

power P = w / t

P₁ / P₂ = t₂ / t₁ = 30s / 1 minute = 30s / 60s = 1/2

(t₁ = 1 minute ; t₂ = 30 second given)

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Topics: Work Energy and Power
(94)

Subject: Physics
(2479)

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