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NEET 2026 · Rotational Kinematics & Dynamics

Rotational Kinematics & Dynamics question from NEET 2026

Q2NEET 2026Easy

Rotational Kinematics & Dynamics

The angular speed of a flywheel is increased from 600 rpm to 1200 rpm in 10 s. The number of revolutions completed by the flywheel during this time is:

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Answer: (c)

600 rpm $= 10$ rev/s, 1200 rpm $= 20$ rev/s
With uniform acceleration, revolutions $= \frac{n_1 + n_2}{2} \times t = \frac{10 + 20}{2} \times 10$
$= 150$ revolutions
So the answer is (c) 150.

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