Re: Some More Problems

[Herb Schulz <herbs@interaccess.com>]

> > 1) Imagine a tricycle wheel (direct drive through the pedals) with the
> > pedals vertical which is free to roll without slipping. Apply a
> > constant force to the BOTTOM pedal (to the right in this example).  The
> force
> > is NOT large enough to cause the wheel to slip over then surface.  What
> is
> > the direction of acceleration of the wheel (and why!)?
> If the pedals are vertical, applying a vertical force to either the top
> or the
> bottom pedal will not result in a forward motion or backward motion
> of the tricycle. In this case the acceleration would be g (in the
> vertical
> direction)

Howdy,

Ooops, I thought I said that the force was horizontal.  I meant to imply
that by saying the force was to the right but didn't do the job correctly.
That's why a "picture" is worth a thousand words.

Good Luck,

Herb Schulz
(herbs@interaccess.com)