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Physics · 2013
JEE Main 2013 · 2013-04-07 Offline · Q51
A hoop of radius r and mass m rotating with an angular velocity ω_0 is placed on a rough horizontal surface. The initial velocity of the centre of…
A hoop of radius $\displaystyle r$ and mass $\displaystyle m$ rotating with an angular velocity $\displaystyle \omega_0$ is placed on a rough horizontal surface. The initial velocity of the centre of the hoop is zero. What will be the velocity of the centre of the hoop when it ceases to slip ?
Official answer
(4)
$\displaystyle \frac{\mathrm{r} \omega_0}{2}$
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JEE Main 2013 Physics question, with the answer from NTA’s final answer key. Where our answers come from.