A cockroach is moving with a velocity v in anticlockwise direction on the rim

A Cockroach Is Moving With A Velocity V In Anticlockwise Physics Question

A cockroach is moving with a velocity v in anticlockwise direction on the rim of a radius R of mass m. The moment of inertia of the disc about the axis is I and it is rotating in clockwise direction with an angular velocity ?. If the cockroach stops, the angular velocity of the disc will be

Options

(a) I?/(I+mR²)
(b) (I?+mvR)/(I+mR²)
(c) (I?-mvR)/(I+mR²)
(d) (I?-mvR)/I

Correct Answer:

(I?-mvR)/(I+mR²)

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

Related Questions:

  1. A transistor-oscillator using a resonant circuit with an inductor L
  2. In the Young’s double slit experiment, the intensity of light at a point on the screen
  3. When a ceiling fan is switched on, it makes 10 revolutions in the first 3s
  4. A thermally insulated rigid container contains an ideal gas heated by a filament
  5. A ray of light passes from a medium A having refractive index 1.6 to the medium

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 A cockroach is moving with a velocity v in anticlockwise direction on the rim

  1. Since the phenomenon occurs in the absence of external torque, so applying the law of conservation of angular momentum-

    I disc ×ω – mvR = (I disc + mR²)×ω`
    ω` = Iω – mvR/ I + mR²

    Therefore, option c is correct!

Leave a Reply

Your email address will not be published.


*