5 Fig. 5 shows a light inextensible string of length 3.3 m passing through a small smooth ring R. The ends of the string are attached to fixed points A and B , where A is vertically above B . The ring R has mass 0.27 kg and is moving with constant speed in a horizontal circle of radius 1.2 m . The distances AR and BR are 2 m and 1.3 m respectively.
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{76875226-2e6c-4571-9318-ecce51ba8b9f-04_677_680_470_632}
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\caption{Fig. 5}
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- Show that the tension in the string is 6.37 N .
- Find the speed of R .