34 The graph is a speed-time graph for a footballer for the first 15.0 seconds of a game.
speed
m/s
7.0-
6.0-
5.0-
4.0-
3.0-
2.0-
27
1.0-
0-
0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0
time / s
Use the graph to calculate the distance travelled by the footballer during the first 4.0 seconds.