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Statics-Learning from Engineering Examples
Mathematical and physical theories cannot be used directly to solve real-life
problems because models (theories) take into account only the most important
physical quantities and cannot account for each particular characteristic of the
given problem. The real-life engineering problems usually deal with objects of
complicated geometrical configuration that cannot be easily modeled. Thus,
simplifications are always required in order to apply the theory. The ability to
simplify the real-life problems and represent them as solvable models is the most
important skill of an engineer. Simplifications are commonly applied to the geometry of a real structure and to the selection of most important physical quantities that
are of major importance to achieve an engineering solution. Because of these
simplifications it is obvious that the analytical solution based on the assigned
physical model does not represent the exact solution for the real problem, but at
the best is a good engineering approximation.
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