Modeling the Motion of an Increasing Mass System

• Autores: William Kunkel, Randal Harrington
• Localización: The Physics Teacher, ISSN 0031-921X, Vol. 48, Nº. 4, 2010, págs. 243-245
• Idioma: inglés
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• Resumen

  • Problems on the dynamics of changing mass systems often call for the more general form of Newtons second law1Fnet??dpdt. These problems usually involve situations where the mass of the system decreases, such as in rocket propulsion. In contrast, this experiment examines a system where the mass increasesat a constant rate and the net force remains constant. This system provides a context that is different, and in some ways simpler, than the rocket propulsion systems typically introduced in introductory courses.