Certain Tricks to Calculate Some Centers of Mass

• Autores: C.H Wörner
• Localización: The Physics Teacher, ISSN 0031-921X, Vol. 61, Nº. 2, 2023, págs. 110-112
• Idioma: inglés
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• Resumen

  • Bounded by the statements of Feynman and Galileo, I describe certain tricks that can be useful for the teaching of physics. In particular, I describe the calculation of the center of mass (centroid) of an arc of circumference and a circular sector. For this purpose, I also use Pappus’s theorems. An Appendix is available with Archimedes’ method to calculate the volume of a sphere circumscribed by a cylinder.