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NEET 2019 · Rotational Kinematics & Dynamics

Rotational Kinematics & Dynamics question from NEET 2019

Q52NEET 2019Easy

Rotational Kinematics & Dynamics

Two particles A and B are moving in uniform circular motion in concentric circles of radii rA and rB with speed vA and vB respecitively. Their time period of rotation is the same. The ratio of angular speed of A to that of B will be:

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Answer: (b)

$\omega = \frac{2\pi}{T}$ depends only on the time period.
Same period $\Rightarrow \omega_A = \omega_B$
So the answer is (b) 1 : 1.

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