What happens to the friction between your tires and the road when you slam on the brakes?

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Multiple Choice

What happens to the friction between your tires and the road when you slam on the brakes?

Explanation:
When you brake, the tire’s contact with the road is initially static friction—the tires roll without slipping, and the road provides up to a maximum grip. If you brake hard enough to exceed that grip, the tires start to slide, and the friction at the contact patch becomes kinetic. Since kinetic friction is typically lower than static friction, the available braking force drops and skidding can occur. So, with a big slam on the brakes, it’s possible for friction to change from static to kinetic. If the brakes are mild enough to avoid slipping, friction stays static.

When you brake, the tire’s contact with the road is initially static friction—the tires roll without slipping, and the road provides up to a maximum grip. If you brake hard enough to exceed that grip, the tires start to slide, and the friction at the contact patch becomes kinetic. Since kinetic friction is typically lower than static friction, the available braking force drops and skidding can occur. So, with a big slam on the brakes, it’s possible for friction to change from static to kinetic. If the brakes are mild enough to avoid slipping, friction stays static.

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