A ring of radius \( R \) is rotating with an angular speed \( \omega_{0} \) about a horizontal a...

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A ring of radius \( R \) is rotating with an angular speed \( \omega_{0} \) about a horizontal axis. It is placed on a rough horizontal table. The coefficient of kinetic friction is \( \mu_{k} \). The time after which it starts rolling is
(a) \( \frac{\omega_{0} \mu_{k} R}{2 g} \)
(b) \( \frac{\omega_{0} g}{2 \mu_{k} R} \)
(c) \( \frac{2 \omega_{0} R}{\mu_{k} g} \)
(d) \( \frac{\omega_{0} R}{2 \mu_{k} g} \)
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