Final answer:
Turning the steering wheel of a car causes the car to accelerate because it changes the direction of the car's velocity.
Step-by-step explanation:
Turning the steering wheel of a car causes the car to accelerate because it changes the direction of the car's velocity. Acceleration is defined as a change in velocity, and since velocity is a vector quantity with both magnitude and direction, changing the direction alone constitutes acceleration. When you turn the steering wheel, you are changing the direction of the car's velocity, which means the car is accelerating.