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CHAPTER 1
CONCEPTS OF ENGINEERING MECHANICS
1.1 INTRODUCTION
Mechanics is one of the branches of physical sciences that deal with the state of rest or motion of
bodies under the action of forces. Mechanics is by far the greatest and the most important subject
since the early history of engineering analysis. The modern and state of art research and
development today in the fields of structure, stability, automotive, thermal design and electronic
equipment are highly dependent upon the basic principle of mechanics.
Figure 1.1: Most Applied Branches of Classic Physics in Engineering
In general, mechanics can be subdivided into three branches and they are rigid-body mechanics,
deformable-body mechanic and fluid mechanics. The rigid body mechanics can be further
subdivided into STATIC and DYNAMIC. Statics, in principle deals with bodies at rest and
dynamics deals with bodies in motion.
Engineering Mechanics also is the application of mechanics to solve problems involving common
engineering elements. The goal of this Engineering Mechanics course is to expose students to
problems in mechanics as applied to plausibly real-world scenarios. Problems of particular types
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