A note on combined sliding and rolling friction

IF 0.8 4区教育学 Q3 EDUCATION, SCIENTIFIC DISCIPLINES

American Journal of Physics Pub Date : 2023-10-01 DOI:10.1119/5.0149826

Rod Cross

引用次数: 0

Abstract

The coefficient of sliding friction is usually regarded as a constant for any given surfaces although it is sometimes known to vary with sliding speed. An experiment is described where the coefficient of friction for a billiard ball decreases to a very small value as the sliding speed decreases to zero, after which the ball starts rolling without sliding. A simple theoretical explanation is provided.

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关于滑动和滚动联合摩擦的注释

对于任何给定的表面，滑动摩擦系数通常被认为是一个常数，尽管有时已知它随滑动速度而变化。描述了一个实验，当台球的滑动速度减小到零时，其摩擦系数减小到一个非常小的值，之后球开始不滑动地滚动。给出了一个简单的理论解释。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

American Journal of Physics 物理-物理：综合

CiteScore

1.80

自引率

11.10%

发文量

146

审稿时长

3 months

期刊介绍： The mission of the American Journal of Physics (AJP) is to publish articles on the educational and cultural aspects of physics that are useful, interesting, and accessible to a diverse audience of physics students, educators, and researchers. Our audience generally reads outside their specialties to broaden their understanding of physics and to expand and enhance their pedagogical toolkits at the undergraduate and graduate levels.