8.
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{ab3c0d61-3cab-4050-8288-6052e8404eb1-24_862_412_310_774}
\captionsetup{labelformat=empty}
\caption{Figure 3}
\end{figure}
Two particles \(A\) and \(B\) have mass 0.4 kg and 0.3 kg respectively. The particles are attached to the ends of a light inextensible string. The string passes over a small smooth pulley which is fixed above a horizontal floor. Both particles are held, with the string taut, at a height of 1 m above the floor, as shown in Figure 3. The particles are released from rest and in the subsequent motion \(B\) does not reach the pulley.
- Find the tension in the string immediately after the particles are released.
- Find the acceleration of \(A\) immediately after the particles are released.
When the particles have been moving for 0.5 s , the string breaks.
- Find the further time that elapses until \(B\) hits the floor.