Did you ever see a gymnast doing a jump? And did you ever notice how they can be flexible and open with the movements that they do in such a fast velocity? You may then ask, why is she telling it to us now? So, I am telling it to you now because gymnasts when they do their complex tricks actually apply quadratic equations.

As you can see this two gymnasts are taking the strength from their initial jump for then arrive with the ends on the vaulting and this movement if looked deeply is actually an arc and with the quadratic equations can too be represented in graphics.