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MHT CET 2019 (2 May, Shift 2) · Rotational Kinematics & Dynamics

Rotational Kinematics & Dynamics question from MHT CET 2019 (2 May, Shift 2)

Q51MHT CET 2019 · 2 MAY · SHIFT 2Easy

Rotational Kinematics & Dynamics

A rigid body is rotating with angular velocity ' $\omega$ ' about an axis of rotation. Let $v$ ' be the linear velocity of particle which is at perpendicular distance ' $r$ ' from the axis of rotation. Then the relation $v = r\omega$ ' implies that

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Answer: (a)

In a rigid body every particle turns through the same angle in the same time, so $\omega$ is the same for all particles.
$v = r\omega$ only says $v \propto r$ ; $\omega$ does not depend on $r$ .
So the answer is (a).

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