College Physics ›› 2017, Vol. 36 ›› Issue (8): 14-16.doi: 10.16854 /j.cnki.1000-0712.2017.08.005

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The motion of a ball starting from a fixed point at the top   

JING Yi-lin   

  1. Institute of Physics and Electrical Engineering,Anyang Normal University,Anyang,Henan 455000,China
  • Received:2016-08-16 Revised:2016-12-15 Online:2017-08-20 Published:2017-08-20

Abstract: The motion of a ball starting from the fixed top pointis analyzed in detail. A mistake and inappropriate in the book of a course of theoretical mechanics written by ZHOU Yan-bai is pointed out.

Key words: rolling ball, fixed point, rolling