On the performance of Usain Bolt in the 100 m sprint

J. J. Hernández Gómez, V. Marquina, R. W. Gómez

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

32 Citas (Scopus)

Resumen

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 resulting equation of motion is solved and fitted to the experimental data obtained from the International Association of Athletics Federations, which recorded Bolt's position with a laser velocity guard device. It is worth noting that our model works only for short sprints.

Idioma originalInglés
Páginas (desde-hasta)1227-1233
Número de páginas7
PublicaciónEuropean Journal of Physics
Volumen34
N.º5
DOI
EstadoPublicada - sep. 2013
Publicado de forma externa

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