A vehicle, which begins at rest at point \(P\), is travelling in a straight line.
For the first \(4\) seconds the vehicle moves with a constant acceleration of \(0.75\,\mathrm{m}\,\mathrm{s}^{-2}\)
For the next \(5\) seconds the vehicle moves with a constant acceleration of \(-1.2\,\mathrm{m}\,\mathrm{s}^{-2}\)
The vehicle then immediately stops accelerating, and travels a further \(33\,\mathrm{m}\) at constant speed.
- Draw a velocity-time graph for this journey on the grid below.
[3 marks]
\includegraphics{figure_13}
- Find the distance of the car from \(P\) after \(20\) seconds.
[3 marks]