Ages

Introduction

Summary

Before beginning an analysis of net forces in order to study  the motion or the equilibrium of a system, one must first define…the system. Only forces exterior to the system are to be considered thereafter.
Note also that for systems at rest, or for those in uniform linear motion, the fundamental principle of dynamics (Newton’s First Law) states that the sum of the exterior forces acting on the system must be zero.

Goals

• To apply properly a free body diagram to the system under consideration.

Features

Select the system you want to work with.
The external forces will automatically appear.

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Tags

force motion ski platter-lift free-body Newton