Base your answer to the question on the information and graph below. The graph below shows the relationship between speed and elapsed time for a car moving in a straight line.
Speed vs. Time
160
14.0
12.0
10.0
Speed (m/s)
8.0
6.0
4.0
2.0
0.0
0.0
2.0
4.0
10.0
12.0
6.0 8.0
Time (s)
Part (A): Determine the magnitude of the acceleration of the car.
Part (B): Calculate the total distance the car traveled during the time interval 4.0 seconds to 8.0 seconds. [Show all work, including the equation and substitution with units.]