Question

The graph below shows the velocity f(t) of a runner during a certain time interval:

Answer 1

Multiple choice:
A. The initial acceleration of the runner was 8m/s^2, and the runner stopped after 6 seconds.
B. The initial accleration of the runner was 6m/s^2, and the runner stopped after 8
C. The initial velocity of the runner was 8m/s^2, and the runner stopped after 6.
D. The inital velocity of the runner was 6m/s^2, and the runner stopped after 8.

Answer 2

Please help. I dont understand at all.