1
\includegraphics[max width=\textwidth, alt={}, center]{03e325b9-171a-4f76-95cd-57dad3741caf-03_533_1351_260_397} The diagram shows the velocity-time graph for a train which travels from rest at one station to rest at the next station. The graph consists of three straight line segments. The distance between the two stations is 9040 m .

1. Find the acceleration of the train during the first 40 s .
2. Find the length of time for which the train is travelling at constant speed.
3. Find the distance travelled by the train while it is decelerating.