A velocity–time graph shows a uniform increase from 4.0 m/s to 10 m/s during the first 4.0 s. The velocity then remains constant at 10 m/s.
The total distance travelled is 84 m.
What is the total time taken?
5.6 s5.6\ \mathrm{s}5.6 s
8.4 s8.4\ \mathrm{s}8.4 s
12 s12\ \mathrm{s}12 s
9.6 s9.6\ \mathrm{s}9.6 s