Automobiles have anti-lock braking systems to prevent the wheels from locking when the brake is suddenly applied. Rather than applying a constant force on the wheel, an anti-lock braking system exerts a series of forces of short duration on the wheel. Why would this be true?(1 point)%0D%0AResponses%0D%0A%0D%0AThe kinetic friction force is larger than the static friction force%0D%0AThe kinetic friction force is larger than the static friction force%0D%0A%0D%0AThe static friction force is larger than the kinetic friction force%0D%0AThe static friction force is larger than the kinetic friction force%0D%0A%0D%0AThe coefficient of kinetic friction of the road in motion with respect the skidding tire is larger than the static coefficient of the road%0D%0AThe coefficient of kinetic friction of the road in motion with respect the skidding tire is larger than the static coefficient of the road%0D%0A%0D%0AWhen the tire is locked, the frictional force is greater but the car cannot be steered
The correct answer is:
When the tire is locked, the frictional force is greater but the car cannot be steered.
The correct answer is "When the tire is locked, the frictional force is greater but the car cannot be steered".
To understand why this is true, let's break it down step by step:
When a car's wheel locks up while braking, it means that the wheel has stopped rotating and is skidding on the road surface. In this situation, the static friction between the tire and the road is in play. Static friction refers to the force acting between two surfaces that are in contact and not sliding relative to each other. It prevents the wheel from moving and allows the car to maintain traction with the road.
In contrast, kinetic friction is the force that acts when two surfaces are sliding relative to each other. When the wheel is locked and skidding, the force of kinetic friction comes into play. This friction force is lower than the static friction force, making it easier for the wheel to slide.
By exerting a series of short, intermittent forces on the wheel through the anti-lock braking system (ABS), the system is able to prevent the wheel from fully locking up and entering a state of kinetic friction. Instead, the wheel is kept in a state where static friction is still in effect. This allows the car to maintain control and steer while braking.
In summary, the anti-lock braking system exerts a series of forces of short duration on the wheel to keep it from locking, as the static friction force provides better control and steering capability compared to the higher friction force observed during locked-wheel skidding.