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What are some good examples of jounce, the fourth derivative of position, in the non-physics arena?

The reason I ask is that A) it's already difficult for a lay to visualize it in the physical arena and B) you never hear of too many examples past the second derivative outside of said physical arena.

Jerk is relatively easy to perceive when one slams on the breaks and then lets them go, and the best way to describe jounce is an amusement park ride since you're always being jerked around.

Outside of physics, it's a little hard to come by, so I'd like to see if there are other ways of perceiving higher order derivatives in other disciplines.

Many thanks in advance!

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    In determining stability of nonhyperbolic fixed points of one-dimensional discrete dynamical systems, it may be necessary to evaluate the so-called Schwarzian derivative. The formula for the Schwarzian derivative involves the third derivative of the function in question.2012-11-09
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    [A related question.](http://math.stackexchange.com/questions/14841)2012-11-09
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    I added a definition and a link since I'd never heard the word *jounce* before. I have heard the fourth derivative called *whip*; Wikipedia says it's also called *snap* but I was once told that *snap* is the **fifth** derivative. I've never heard any of these terms used seriously, more just in the context of "did you know that the fourth derivative has a name"?2013-06-19
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    Bending an elastic beam helps me understand the fourth derivatives pretty well, for the model uses the fourth derivative w.r.t. space, not time.2013-06-19

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