Mechanics
Draft for Information Only IntroductionMechanics Mechanics is a scientific study of objects under the action of forces by the description and prediction of their conditions in equilibrium or in motion. The three areas of study are mechanics of rigid bodies, mechanics of deformable solids and mechanics of fluids. For mechanics of rigid bodies, it can be subdivided into statics, and dynamics. Principles The study of mechanics are mainly based on the fundamental principles formulated by Newton in 1687. Because of the implications of Einstein's first theory of relativity in 1905, the limitation of these principles are recognized. However, newtonian mechanics still applies in engineering sciences as the basis because the errors due to special relativity can be ignored at low speeds and weak gravitational fields. The Principles includes Newton's three laws of motion, which are
And Newton's laws of gravitation, which states
Concepts The basic concepts used for the formulation of three laws of motion are space, time, mass, and force.
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