I'll try in puzzles: Physics of acrobatics

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tesseract
Posts: 418
Joined: Fri Jun 04, 2004 3:01 am
Location: Vancouver, Canada

I'll try in puzzles: Physics of acrobatics

Post by tesseract »

I tried this over in Science, but it might fit better in puzzles.


OK, I need some help to resolve an argument.
First some definitions:

Flip: rotation of the body around an axis that passes through the hips.
Back flip: direction of rotation if, after 1/4 flip, your back is to the ground
front flip: direction of rotation if, after 1/4 flip, your stomach is to the ground

pretty basic. now twisting.

Twisting: rotation of the body around an axis that passes through the body from head to feet.
Twisting left: left shoulder goes back, right shoulder goes forward, relative to the person twisting. (counterclockwise if you're looking down on the person.
Twisting right: The other way.


OK, so to do a back flip with a tiwst to the left, (on trampoline), you start the flip with both arms above your head, and about 1/3 of the way through the flip, you put your left arm down sideways. With the right timing, it'll make you do a full twist.

Finally the question

To twist left in a front flip, which arm do you put down?