Quote:
Originally Posted by phred68
Then why does a wide tire grip better than a skinny one?
|
The frictional interaction between a tire and the road is pretty far removed from the classical application. Alot of the friction generated between a tire and the road is due to the relatively soft rubber of the tire interacting (and getting ripped off) by irregularities in the road. F=mu*N doesn't work very well. In fact, if you look at the plot of frictional forces generated by a tire as a function of normal load, the curve isn't even linear.