It seems to me that if kinetic friction is greater than static friction with
tires, then when your tires started sliding, the increased friction would
cause them to grip again, stop sliding and start turning giving you
breaking action again. A possible indicator that this doesn'r happen is the
tire marks on a racetrack curve. They are all STRAIGHT! If the kinetic
friction were greater, the tires turning again would give one control at
least for a limited time and the straight line would be interupted. 'Any
body else think this might be true? The comment made about heating the
tires up by spinning does seem logical to me. It seems possible to have a
kinetic coefficient of hot tires that would be higher that the static
coefficient of cold ones. On the side, if you haven't checked out the
angle where sliding starts with a pair of chaulk board erasers, you may
be very surprised! The tangent of the angle just before slippage is the
value of the coefficient and you'll find it to be VERY high!
Gordon Shepherd