Paper Aeroplanes

This is a typical set of experimental results from a school Physics course. Paper aeroplanes were constructed with a variety of wing areas and angles and then subjected to a series of timed drops. This chart shows that there is an optimum wing angle around 40 degrees.

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Although GraPL has been asked to fit an order-2 polynomial, there is no particular rationale for this, and we did not quote the equation of the curve here.