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are explored in detail in the hopes that students will gain an inductive understanding of the

underlying principles at work, students should then be able to recognize problems of this sort in
real-world situations and respond accordingly.

Further, this text aims to support the learning of Engineering Mechanics with theoretical material,
general key techniques, and a sufficient number of solved sample.

1.2 FUNDAMENTAL CONCEPT OF MECHANICS

Several definitions and concepts are very basic but vital to understand everything about mechanic.
They can be described as below;

1.2.1 STATIC

Statics is the branch of mechanics that is concerned with the analysis of loads acting on physical

systems that do not experience an acceleration (a=0), but rather, are in static equilibrium with their
environment.

Statics deals with the situation where the acceleration (a) is zero - which happens when a body is

at rest, or moving with constant velocity. That means that the total force on a body at rest or with

constant velocity must be zero. In other words, the sum of the forces on the body must equal zero.

1.2.2 DYNAMICS

Dynamics means an object is in motion with some speed when a force is applied on it. Eg: a car is
moving on the road with some velocity.

Figure 1.2: Force is used to push a car

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