| Exam Board | AQA |
|---|---|
| Module | M1 (Mechanics 1) |
| Year | 2011 |
| Session | June |
| Marks | 9 |
| Paper | Download PDF ↗ |
| Topic | Constant acceleration (SUVAT) |
| Type | Average speed or total distance calculation |
| Difficulty | Easy -1.2 This is a straightforward SUVAT question with all parameters clearly given and standard bookwork methods. Part (a) is trivial arithmetic (distance = speed × time), parts (b) and (d) use basic constant acceleration formulae with no algebraic manipulation challenges, and part (c) is a routine sketch. The multi-part structure adds length but not conceptual difficulty—each step follows mechanically from the previous one with no problem-solving insight required. |
| Spec | 3.02b Kinematic graphs: displacement-time and velocity-time3.02d Constant acceleration: SUVAT formulae |
3 A pair of cameras records the time that it takes a car on a motorway to travel a distance of 2000 metres. A car passes the first camera whilst travelling at $32 \mathrm {~ms} ^ { - 1 }$. The car continues at this speed for 12.5 seconds and then decelerates uniformly until it passes the second camera when its speed has decreased to $18 \mathrm {~ms} ^ { - 1 }$.
\begin{enumerate}[label=(\alph*)]
\item Calculate the distance travelled by the car in the first 12.5 seconds.
\item Find the time for which the car is decelerating.
\item Sketch a speed-time graph for the car on this 2000-metre stretch of motorway.
\item Find the average speed of the car on this 2000-metre stretch of motorway.
\end{enumerate}
\hfill \mbox{\textit{AQA M1 2011 Q3 [9]}}