And if we want to stretch our brains all the way back to physics then
we can't just calculate the kinetic friction by u(k) = F(f) / F(n)
because a big factor of skidding has to do with the ability of the
rubber in the tire to stick to each other. When this fails then the
only force stopping us is the ripping coefficient.
This increases the friction available because the rubber that is
ripping free is actually back to its static friction value, but then
the burning rubber and resulting vapor that makes an air and liquid
rubber cushion for the rest of the tire causes the sliding on water
effect that DD mentions.
Too much physics make Hulk's brain hurt, need nap...
NITF
For fun check out this site dedicated to accident recreation theory:
http://www.rec-tec.com/Grade.html
On Thu, 12 Jul 2001 13:07:59 -0400, dakotasdodge@hotmail.com ("Dakota
Dodge") wrote:
>The coeficient of friction for tires is approx .95, and once they start to
>skid (which if you look at it in slow motion...the tires are skidding on the
>burning rubber) the coeficient of friction drops down to the area of water
>(ever hydroplaned in your DAK?...same idea as skidding on rubber)
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