Originally Posted by
jhota
i don't understand what you are asking.
what does the static coefficient have to do with the question at all?
the reason locking the brakes on a car and skidding stops faster on dry pavement is because it maintains a constant maximum amount of friction between the tyres and the road. ABS won't let the tyres reach that maximum of drag and allows them to slide for fractions of a second (which is functionally no stopping force). hence longer stopping distances with ABS on dry pavement.
wet pavement introduces hydroplaning - locked up tyres equaling no friction.
but in all of these cases, we're discussing kinetic friction.
I don't know what kind of riding you do, but as I ride my tire does not skid relative to the road. Hence the static coefficient of friction is governing my braking.
Locking the brakes on a car and skidding will not stop a car faster than applying the brake as much as you can without locking the tires. When you lock the tires, you switch to kinetic friction, which creates less friction force. Skidding (regardless of pavement conditions) is not a very good way to slow down.
http://auto.howstuffworks.com/brake2.htm