Answer:
(B) 70.5
Explanation:
During the first second the acceleration is 2, and the distance is 2
During the second second the acceleration is 5, and the distance is 4.5
During the third second the acceleration is 4, and the distance is 9
During the last 5 seconds the acceleration is 0, velocity is 11 and the distance is 55 m
2 + 4.5 + 9 + 55 = 70.5 (B)