Re: The Olympics

[SSHS KPHOX <kphox@MAIL.CCSD.K12.CO.US>]

PHYS-L@lists.nau.edu writes:
> My girlfriend,
> a gymnast, argues that this is not so.  She claims
> that it is important to leave the ground with no
> rotation whatsoever and that move required to twist is
> simply to draw both fists to the one shoulder and turn
> the head toward that same shoulder, causing a rotation
> in that direction.

I wish I had taped last nights 3m diving. I watched for initial rotation (
and found none) and saw several rotations (performed by arm motions alone,
but the motions were short lived and limited by the shoulders or head). I
am at a loss and want to try to be able to tape some future diving.

In essence, my observations match the "girl friend"'s assertions.
Hmmmmmmm

Ken Fox
AP/IB Physics Teacher
Smoky Hill High School
Aurora, CO