What can an unbalanced force do to a car?

An unbalanced force acting on a car can cause it to accelerate, decelerate, or change direction, depending on the direction and magnitude of the force applied. For example, if the brakes are applied, the unbalanced force will slow the car down. Conversely, if the driver accelerates or turns the steering wheel, the unbalanced force can make the car speed up or change its path. This change in motion is consistent with Newton's second law of motion, which states that force equals mass times acceleration.