What happens if you exceed the available friction?

• A. You stay at the same speed.
• B. You accelerate.
• C. You can gain control of your vehicle.
• D. You can lose control of your vehicle.

Answer: (D)

Friction between tires and the road has a finite limit. That limit is the amount of grip the surface can provide for braking, accelerating, and turning. If you push beyond that grip—by braking hard, turning sharply, or accelerating on a slick surface—the tires break static contact and start to slide. When sliding begins, grip drops because you’re now relying on weaker kinetic friction, so you can’t accurately control speed or direction. The result is a loss of control, such as skidding or spinning, rather than maintaining your intended path. To keep control, ease off abrupt inputs and slow down to stay within the friction limits, especially in wet or icy conditions.