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Physics · SYSTEMS OF PARTICLES AND ROTATIONAL MOTION
हिन्दीThe angular velocity of a body increases from 600 rpm to 2400 rpm in 12 s under a uniform angular acceleration. The total number of revolutions completed by the body during this time is:
Correct answer · Option 1
300
Explanation
Number of revolutions \( N = \frac{\omega_0 + \omega}{2 \times 2\pi} t = \frac{f_0 + f}{2} t = \frac{10 + 40}{2} \times 12 = 25 \times 12 = 300\text{ revolutions} \).
