2
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{34e4ce80-21b0-48f5-865c-de4dd837f7c5-1_98_836_1073_718}
\captionsetup{labelformat=empty}
\caption{Fig. 5}
\end{figure}
A toy car is moving along the straight line \(\mathrm { O } x\), where O is the origin. The time \(t\) is in seconds. At time \(t = 0\) the car is at \(\mathrm { A } , 3 \mathrm {~m}\) from O as shown in Fig. 5. The velocity of the car, \(v \mathrm {~m} \mathrm {~s} ^ { - 1 }\), is given by
$$v = 2 + 12 t - 3 t ^ { 2 }$$
Calculate the distance of the car from O when its acceleration is zero.