A simple model for the falling cat problem

被引：1

作者：

Essen, Hanno ^{[1
]}

Nordmark, Arne ^{[1
]}

机构：

[1] Royal Inst Technol, Dept Mech, SE-10044 Stockholm, Sweden

来源：

EUROPEAN JOURNAL OF PHYSICS | 2018年 / 39卷 / 03期

关键词：

zero angular momentum rotation; falling cat problem; four-particle model; four degrees-of-freedom system; ANGULAR-MOMENTUM CONSERVATION;

D O I：

10.1088/1361-6404/aaac06

中图分类号：

G40 [教育学];

学科分类号：

040101 ; 120403 ;

摘要：

We introduce a specific four-particle, four degree-of-freedom model and calculate the rotation that can be achieved by purely internal torques and forces, keeping the total angular momentum zero. We argue that the model qualitatively explains much of the ability of a cat to land on its feet even though released from rest upside down.

引用

页数：8

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