Mechanics: Chapter 8 – Free Body Diagrams

Drawing a free body diagram is an efficient way to understand and evaluate the forces acting on an object. The simplest way to model an object in a free-body diagram is to consider it to be a particle. This is a highly simplified model and is useful only when the rotational motion of the object is negligible. A particle (or point particle) is an ideal object that has mass but no size. In a free-body diagram of a point particle, essentially all one has to do is sketch the particle and arrows showing the directions of different forces acting on the particle. Here are some free body diagram examples I made,

free body diagram 1

free body diagram 2

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