On a simple experiment on the free rotation of a ruler and other laminas
作者:
A. Amengual,
期刊:
American Journal of Physics
(AIP Available online 1996)
卷期:
Volume 64,
issue 1
页码: 82-87
ISSN:0002-9505
年代: 1996
DOI:10.1119/1.18296
出版商: American Association of Physics Teachers
关键词: ASPECT RATIO;CLASSICAL MECHANICS;MOMENT OF INERTIA;ROTATION;03.20;01.50.M
数据来源: AIP
摘要:
The torque‐free rotation of a solid body is unstable about the axis with the intermediate principal moment of inertia. Such an instability can be shown with a simple experiment using a ruler. In this work, the equations of Euler are integrated and the orientation of the ruler, referred to the laboratory reference frame, determined as a function of time. This allows a beautiful comparison between the observed rotation of the ruler and the theory behind it.
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