My turn to be wrong, maybe:
Off the cuff, the weight of the car / 4 will be force
exerted on each tire.  The weight is a force.  The
force the each tire has to act against is the same in
both cases.  Force = pressure x area.  If the force is
the same and the pressure is the same, the area has to
be the same.
Is it racing season yet ;-).
--- Bill L <pythias@pacifier.com> wrote:
> Hello Ron,
> 
>         and now for another brain teaser .....
> 
>         assuming that the tires are to be filled to
> the exact same
>         tire pressure, which puts more rubber on the
> road, a tall
>         skinny tire, (like a 165/80/13) or a short
> fat tire, (like a
>         205/50/15)?  of course on the same car.
=====
Ron Soave
"But you don't really know me."
- Bruce Springsteen, after a fan screamed "We Love You, Bruce!"
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