Trouble on the loop‐the‐loop
作者:
Peter L. Tea,
期刊:
American Journal of Physics
(AIP Available online 1987)
卷期:
Volume 55,
issue 9
页码: 826-829
ISSN:0002-9505
年代: 1987
DOI:10.1119/1.14997
出版商: American Association of Physics Teachers
关键词: CLASSICAL MECHANICS;SPHERES;ROLLING;ENERGY
数据来源: AIP
摘要:
Energy considerations give an incorrect value for the minimum height from which a sphere may be released on the approach track of a loop‐the‐loop, assuming that the sphere rolls without slipping. Analytical and graphical methods are described for predicting whether the sphere will negotiate the top of the circular loop for arbitrary conditions of release height and coefficients of friction. Finally, a situation in which a sphere commences to slip immediately upon release is discussed.
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