Find the energy stored in the string.
A particle is attached to the mid-point of the string. The particle is given a horizontal velocity of \(10 \mathrm {~m} \mathrm {~s} ^ { - 1 }\) perpendicular to AB (see Fig. 1.1), and it comes instantaneously to rest after travelling a distance of 0.9 m (see Fig. 1.2).
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{5bb02383-91c0-4454-aaea-0bd6af6ba325-2_524_305_1274_639}
\captionsetup{labelformat=empty}
\caption{Fig. 1.1}
\end{figure}
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{5bb02383-91c0-4454-aaea-0bd6af6ba325-2_524_305_1274_1128}
\captionsetup{labelformat=empty}
\caption{Fig. 1.2}
\end{figure}