Arace car completes the final lap of a race on a 2-kilometer circular track. at the start of the lap, it crosses the line at 60 meters/second. it completes the lap 28.57 seconds later, crossing the line at 85 meters/second. calculate the displacement and average acceleration of the car within the span of 12 seconds.

a. displacement is 0 meters, and acceleration is 0.88 meters/second^2.
b. displacement is 2,000 meters, and acceleration is 1.14 meters/second^2.
c. displacement is 0 meters, and acceleration is 70.0 meters/second^2.
d. displacement is 2,000 meters, and acceleration is 80.0 meters/second^2.
e. displacement is 0 meters, and acceleration is 0.70 meters/second^2.