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NEET UG PHYSICS MCQ: SYSTEM OF PARTICLES

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A stationary wheel starts rotating about its own axis at uniform angular acceleration

16\,rad/{s^2}

. The time taken by it to complete 77 rotations is

View answer and explanation

Correct option: A

5.5 sec

Option A (5.5 sec) is correct because it is calculated using the rotational kinematic equation

\theta = \omega_0 t + \frac{1}{2} \alpha t^2

, where

\omega_0 = 0

and

\theta = 77 \times 2\pi

radians.

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