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प्रश्न
A wheel rotates at \[120\,\mathrm{rev/min}\]. What is its angular velocity?
पर्याय
\[\omega=4\pi\,\mathrm{rad/s}\]
\[\omega=120\pi\,\mathrm{rad/s}\]
\[\omega=2\pi\,\mathrm{rad/s}\]
\[\omega=240\pi\,\mathrm{rad/s}\]
MCQ
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उत्तर
Convert revolutions to radians and minutes to seconds. The result is \[\omega=\frac{120\times2\pi}{60}=4\pi\,\mathrm{rad/s}\].
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