On the performance of Usain Bolt in the 100 m sprint

@article{Gomez2013OnTP,
  title={On the performance of Usain Bolt in the 100 m sprint},
  author={Jorge A. G'omez and Vivianne Marquina and Roberto G'omez},
  journal={European Journal of Physics},
  year={2013},
  volume={34},
  pages={1227 - 1233}
}
Many university texts on mechanics consider the effect of air drag force, using the slowing down of a parachute as an example. Very few discuss what happens when the drag force is proportional to both u and u2. In this paper we deal with a real problem to illustrate the effect of both terms on the speed of a runner: a theoretical model of the world-record 100 m sprint of Usain Bolt during the 2009 World Championships in Berlin is developed, assuming a drag force proportional to u and to u2. The… 

A physical model of sprinting.

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