# A uniform circular disc of radius r is placed on a rough horizontal surface and given a linear $w_0$ as shown. The disc com,es to rest after moving some distance to the right. It follows that
$\begin {array} {1 1} (a)\;3V_0=2 w_0 r & \quad (b)\;2V_0=W_0 r \\ (c)\;\frac{W}{2} & \quad (d)\;none \;of\;these \end {array}$