›› 2009, Vol. 28 ›› Issue (8): 18-18.

• 著者文摘 • Previous Articles     Next Articles

Analyses on a ball up rolling

  

  • Online:2009-08-20 Published:2009-08-20

Abstract: Some problems including the reasons, the conditions and the demo effect in the experiment of a ball up rolling on nonparallel double-beeline are discussed, and a geometric proposition on ellipse is given.

Key words: ball up rolling, demo experiment, instantaneous center, ellipse

CLC Number: 

  • O326