1999-Brauer-What Goes Up Must Come Down

By F. Brauer

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Article Review and Annotation

Brauer, F. 1999.  What Goes Up Must Come Down.  American Mathematical Monthly. 108(5):  437-440.

This paper is a wonderfully general analysis of the following, “It is natural to ask whether a particle propelled upwards takes longer to fall to earth from its maximum height than it takes to rise to this maximum height for frictional forces that are nonlinear functions of velocity. Since linear and quadratic retarding forces are at best approximations, we would like to answer the question for a general force function. The purpose of this Note is to establish that the falling time is greater than the rising time in general.”

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Researchers should cite this work as follows:

  • F. Brauer (2015), "1999-Brauer-What Goes Up Must Come Down," https://simiode.org/resources/930.

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