RE: [ST] for Matt and Richard - tire width & cornering

["Solomon, Jack S" <jack.s.solomon@xxxxxxxx>]

Frictional force being proportional to the product of the normal force
is the "simple model" of friction.  College physics does explain that it
is only an approximation and that real friction is more complicated,
thank you...

- -----Original Message-----


  For highly deformable matterals such as tires, surface area is a much
larger component of traction/friction then the normal force. The
friction being proportational to normal force (weight) is only an
approximation, that works best for hard matterals on smooth surfaces.
For something like tire rubber on a rough surface, it is a very poor
approximation.

 


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