Friction Forces on a Pulled Spool

• Rod Cross ^[1]
  1. [1] University of Sydney

     University of Sydney

     Australia

     
• Localización: The Physics Teacher, ISSN 0031-921X, Vol. 62, Nº. 9, 2024, págs. 725-727
• Idioma: inglés
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• Resumen

  • A simple experiment is described using a spool pulled across a horizontal surface, showing that the friction force on the spool increases with the pull force, consistent with theoretical calculations. A much smaller friction force arises if the ribbon around the spool is pulled from the top of the spool rather than from the bottom of the spool.