Answer:
The acceleration of the car is
.
Step-by-step explanation:
It is given that,
Initial speed of the car, u = 0
Final speed of the car, v = 5 m/s
Time, t = 4 s
We need to find the average acceleration over this period of time. It is given by the rate of change of velocity. It is given by :



So, the acceleration of the car is
. Hence, the correct option is (D).