One coolie takes 1 minute to raise a suitcase through a height of 2 m

One Coolie Takes 1 Minute To Raise A Suitcase Through Physics 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 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)

Related Questions:

  1. The phase difference between the flux linked with a coil rotating in a uniform
  2. A particle of mass ‘m’ is kept at rest at a height 3R from the surface of earth
  3. An α-particle moves in a circular path of radius 0.83 cm in the presence of a magnetic
  4. The ionization energy of Li⁺⁺ is equal to
  5. The output of OR gate is 1(one)

Topics: Work Energy and Power (94)
Subject: Physics (2479)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*