Final answer:
The change in velocity of the car is 0 m/s.
Step-by-step explanation:
The change in velocity of the car can be calculated by finding the difference between the initial velocity and the final velocity. In this case, the car initially travels due east at 22 m/s and then makes a turn due south and continues to travel at 22 m/s. The initial velocity in the east direction is 22 m/s, while the final velocity in the south direction is also 22 m/s. Since the change in velocity is simply the difference between the final and initial velocities, the change in velocity of the car is 22 m/s - 22 m/s = 0 m/s.