Answer:
average speed of the car is 72 kilometers per hour.
Explanation:
To calculate the average speed of the car, we first need to find the total distance traveled and then divide it by the total time taken.
Total distance traveled = Distance traveled south + Distance traveled north
= 22 km + 14 km
= 36 km
Since the car travels both distances in half an hour, the total time taken is 0.5 hours.
Average speed = Total distance / Total time
= 36 km / 0.5 hours
= 72 km/h