Failure of intuition in elementary rigid body dynamics

被引：3
|
作者：
Lemos, Nivaldo A. [1 ]
机构：
[1] Univ Fed Fluminense, Inst Fis, BR-24210340 Niteroi, RJ, Brazil
来源：
EUROPEAN JOURNAL OF PHYSICS | 2008年 / 29卷 / 02期
关键词：
D O I：
10.1088/0143-0807/29/2/N01
中图分类号：
G40 [教育学];
学科分类号：
040101 ; 120403 ;
摘要：
Suppose a projectile collides perpendicularly with a stationary rigid rod on a smooth horizontal table. We show that, in contrast to what one naturally expects, it is not always the case that the rod acquires maximum angular velocity when struck at an extremity. The treatment is intended for first-year university students of physics or engineering, and could form the basis of a tutorial discussion of conservation laws in rigid body dynamics.
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页码：N1 / N4
页数：4
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