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From: PHRP@FHSUVM.FHSU.EDUthe tires
A student into drag racing once told me that the reason for spinning
is to heat up the rubber so that it begins to melt and thus "flow"into the
surface of the pavement. This increases the frictional force betweentire and
pavement.on the
What is happening is that by heating the tire by causing it to spin
pavement, the driver is changing the material and hence thecoeficient of
friction between the tire and the road. The hot tires behavedifferently than
cold tire rubber. In Dr. Shapiro's example, and that is true for therest of
us, we start to skid because the tire is not rolling, and thecoeficient of
friction in the skid is less than if we allow the tire to roll.Passenger car
tires are of a different rubber than racing tires. Antilockingbrakes are
based on the idea that we maintain the greatest coeficient offriction between
tire and road by allowing the tire to roll--NOT slide.