DOI:
https://doi.org/10.14483/23464712.5278Published:
2008-01-01Confrontación experimental de tres modelos teóricos de caída libre
Experimental confrontation of three theoretical models of free fall
Keywords:
Stroboscope, drag force, Stokes law, Reynolds number (en).Keywords:
Estroboscopio, ley de Stokes (es).Downloads
Abstract (es)
En este artículo se presenta el diseño y aplicación de una práctica de laboratorio en la cual se empleó la técnica de fotografía estroboscópica para registrar la caída de cuerpos con forma esférica y cúbica, se compararon los resultados experimentales con tres modelos teóricos (esferas). También, a partir de los valores obtenidos de los objetos de forma cubica nos aproximamos a la formulación de su modelo teórico. En los modelos teóricos para los cuerpos esféricos se contemplan los dos tipos de fuerza de arrastre que corresponden a un intervalo bien definido del número de Reynolds y al empuje
Abstract (en)
This paper presents a design and application of a laboratory practice in which the stroboscopic photography technique was used to record the fall of spherical and cubic bodies. The experimental results were compared with three theoretical models (spheres). Also, from the values obtained from cubic-shaped objects we approach the formulation of its theoretical model. In theoretical models for spherical bodies the two types of drag forces corresponding to a well-defined range of the Reynolds number and pushing force are contemplated.
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