# A car is moving at a speed $50 \;km /h$ two seconds there it is moving at $60 \;km/h$ Calculate the acceleration of the car.
$\begin{array}{1 1} 2.39 \;m/s^2 \\ 1.39\;m/s^2 \\ 3.45\;m/s^2 \\1.98\;m/s^2\end{array}$