MENU

The angular velocity of a wheel increases from 100 rps to 300 rps in 10 seconds.

The Angular Velocity Of A Wheel Increases From 100 Rps Physics Question

The angular velocity of a wheel increases from 100 rps to 300 rps in 10 seconds. The number of revolutions made during that time is

Options

(a) 600
(b) 1500
(c) 1000
(d) 2000

Correct Answer:

2000

Explanation:

Assuming constant angular acceleration,
α=2πx300-2πx100/10
=2πx200/10
=40 π radius/s²
ω²f-ω²i=2α.θ
θ=4π²(90000-10000)/2×2πx20
=2π(80000)/40
=2πx2000
.·. Total number of revolutions=2000.

Related Questions:

  1. A body initially at rest is moving with uniform acceleration a m/s²
  2. An observer moving away from a stationary source. The observed frequency is half
  3. Which dimensions will be the same as that of time?
  4. ₉₂U²³⁵ undergoes successive disintegrations with the end product of ₈₂P²⁰³
  5. A body weighs 50 grams in air and 40 grams in water. How much would it weigh in a liquid

Topics: Motion of system of Particles and Rigid Body (73)
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

1 Comment on The angular velocity of a wheel increases from 100 rps to 300 rps in 10 seconds.

Leave a Reply

Your email address will not be published.


*