Motion of a Rocking Rainbow

• Autores: Joel D. Krehbiel
• Localización: The Physics Teacher, ISSN 0031-921X, Vol. 62, Nº. 3, 2024, págs. 174-177
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • A children’s stacking rainbow toy easily demonstrates the motion of a rocking semicylinder or semicylindrical shell. This toy provides a simple way to discuss how the period of an oscillating object depends on the location of the center of mass and the moment of inertia about the ground. Here, I develop the theory for the period of a rocking semicylinder and a rocking semicylindrical shell. The theory agrees well with experimental evidence of the period of the rocking rainbow.