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Friction Forces and Spring Forces

  • Oliver M. O’Reilly
Chapter

Abstract

Two types of forces are discussed in this chapter: friction forces and spring forces. We start with the former and consider a simple classical experiment. Based on this experiment, general (coordinate-free) expressions for friction forces are obtained. The chapter closes with the corresponding developments for a spring force. The reason for including a separate chapter on these two types of forces is that I have found that they present the most difficulty to students when they are formulating problems. In particular, many students have the impression that if they do not correctly guess the direction of spring and friction forces in their free-body diagram, then they will obtain the wrong answer. The coordinate-free formulation of these forces in this chapter bypasses this issue.

Keywords

Friction Force Normal Force Static Friction Space Curve Dynamic Friction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer New York 2010

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringUniversity of California, BerkeleyBerkeleyUSA

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