Physics - Gravitation Question with Solution | TestHub

A drum of mass $m_1$ and radius $r_1$ rotates freely with initial angular velocity ${\omega }_0$. A second drum with mass $m_2$ and radius $r_2\left(r_2>r_1\right)$ is mounted on same axle and is at rest although it is free to rotate. A thin layer of sand with mass $m$ is distributed on inner surface of smaller drum. At $t=0$, small perforations in the inner drum are opened. The sand starts to fly out at a constant rate $\lambda \mathrm{kg}/\sec$ and sticks to the outer drum. Ignore the transit time of the sand. Choose the correct alternatives.