Shown are graphs of the position function of two runners, A and B, who run a 100-m race and finish in a tie.
![2413_Graphs of the position function.png](https://secure.tutorsglobe.com/CMSImages/2413_Graphs%20of%20the%20position%20function.png)
a) Describe and compare how the runners run the race.
b) At what time is the distance between the runners the greatest?
c) At what time do they have the same velocity?