Originally Posted by carver_hk
I have been thinking about what are the changes of external forces in the very brief moment when we release a carving turn. What i have in mind is:
1. skis rebound - in a direction directly out of each skis, decreasing untill fully release.
Here's an interesting test I did to get a feel for how much force is generated when a ski is released.
First, I printed a couple of pictures that showed my ski bending. This is very important because I wanted to create the same bend in the following test.
1) I put a support under the tip and tail of my skis (I did this over an old piece of carpet so I wouldn't damage the base or edges). For the support I used two small coolers that were roughly 12" tall.
2) I then bent the ski into an arc by pushing down on the center of the binding plate with my foot. I flexed the ski back and forth, getting a feel for the amount of force in both directions.
3) I then matched the ski bend in the pictures.
4) Once I had matched an arc I quickly flexed my leg to see how much of a kick back I got from the ski.
5) The rebound I felt in this test was much less than what a I feel when I'm skiing.
Of course the results I found here really aren't a surprise because in skiing we don't just release a bent ski. We are also releasing the force that has built from the top of the arc through the bottom. And this force can be quite large resulting in an abrupt change from very heavy to very light. Similar to going over a big bump.