3 Figure 3.7 shows an incomplete velocity-time graph for a boy running a distance of 100 m. a What is his acceleration

3 Figure 3.7 shows an incomplete velocity-time graph for a
boy running a distance of 100 m.
a What is his acceleration during the first 4 seconds?
How far does the boy travel during (i) the first
4 seconds, (ii) the next 9 seconds?
b
c
Copy and complete the graph showing clearly at what
time he has covered the distance of 100 m. Assume
his speed remains constant at the value shown by the
horizontal portion of the graph.
Figure 3.7
velocity/m/s
7.5
5.0
2.5
02 4 6 8 10 12 14
time/s

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