Re: Car acceleration

[Herb Schulz <herbs@INTERACCESS.COM>]

> ...
> c. Friction from the road would be in the reverse direction
> and could only decelerate the car (which we assume is already
> initally stopped at the stop sign).
...

> Herb Gottlieb from New York City
> (Where cars do not always stop at stop signs when the police
> are not around)

Howdy,

If you think in terms of how the tire deforms as IT pushes BACKWARD
ON THE ROAD  you will see that, indeed, the static friction force THE
ROAD applies ON the TIRE is in the FORWARD DIRECTION.

Good Luck,
--
Herb Schulz
(herbs@interaccess.com)