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2. Max acc is always achieved with some slippage of the tires. Therefore,
slipping friction must be greater than static friction. Drag racers do not
spin their tires because they are out of control. They do it because it gives
the max acc. Likewise a race car in a turn is deliberately set up to slide.
Sliding is faster. To stop the slide you have to slow down!
small and my measurements were not that accurate. Has anybody experimented
with motion detectors and force probes connected to a computer or graphing
calculator to look for these effects? My guess is that with their accuracy
it should be possible to show that at least for some materials our simple
linear models are not a very good approximation.