russ_watters said:No, the key is always the friction between the tire and the road: static friction is always greater than dynamic (sliding) friction.
Essentially, when something is stationary, the rough surfaces settle against each other, but when the surfaces are moving with respect to each other, they don't. They'll skip from one bump to the next.madmike159 said:I read it but don't get why static friction > dynamic friction.
Abninfamy said:Friction is the normal force times the coefficient of friction.
Why do wider tyres give more grip than narrow tyres?
Locking wheels while braking is usually caused by the driver applying too much pressure on the brake pedal, causing the wheels to stop rotating and lose traction with the road surface. This can also occur if the brake pads are worn out or if the brake fluid is low.
Locking wheels can significantly increase a vehicle's stopping distance. When the wheels lock up, the vehicle loses its ability to steer and may continue to travel in the same direction, making it difficult to stop quickly. This can also cause the vehicle to skid, which increases the stopping distance even further.
Yes, anti-lock braking systems (ABS) are designed to prevent wheels from locking up while braking. ABS uses sensors to detect when a wheel is about to lock up and then releases and reapplies the brakes rapidly to prevent the wheels from fully locking up. This allows the driver to maintain control of the vehicle while braking.
Locking wheels can significantly affect a vehicle's handling. When the wheels lock up, the vehicle loses its ability to steer and may continue to travel in the same direction, making it difficult to maneuver or avoid obstacles. This can also cause the vehicle to skid, making it harder to control and increasing the risk of an accident.
To prevent wheels from locking up while braking, it is important to maintain a safe following distance from the vehicle ahead and to avoid sudden and excessive pressure on the brake pedal. It is also important to keep the vehicle's brakes well-maintained, including regularly replacing brake pads and checking the brake fluid level. In addition, it is recommended to keep both hands on the steering wheel and to steer in the direction of the skid if the wheels do lock up.