Bola Motion

• Autores: Thomas McCarthy
• Localización: The Physics Teacher, ISSN 0031-921X, Vol. 48, Nº. 4, 2010, págs. 222-224
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • Toward the end of the AP® Physics C Mechanics course, I challenge my students to integrate many of the concepts they have learned in both the classroom and laboratory by completing the �Bola Lab.� The title is based on the Argentinean gaucho cowboy herding tool, the boleadora, or bolafor short see Fig. 1,1which consists of two heavier weights attached to two longer cords and a lighter weight attached to a shorter cord, as shown in Fig. 2.2The bola is held by the smaller ball and twirled in a horizontal plane around the head to give the balls momentum and then released. Being thrown in this manner arranges the two heavier weights to rotate and fly closer together as compared with a bola with equal weights and cord lengths.3With practice, this will result in the pair hitting either side of the catties legs, and the lighter weight then swings around this instantaneous axis of rotation, thus wrapping up the animals legs4,5and capturing him. The weights are chosen so they do not harm but merely capture the animal