Mechanics is both a fundamental discipline and a technical discipline. It is a bridge between science and engineering. Mechanics concerns with the motions of physical objects, specifically the relations among force, matter, and motion. Mechanical bodies stand for a wide assortment of objects, including particles, rigid bodies, solids, fluids, etc. Depending on the nature of the bodies, mechanics can be divided into three branches: (a) general mechanics, dealing with the mechanical behavior of material points and rigid bodies; (b) fluid mechanics (or the mechanics of continuous media), which is concerned with ideal and viscous fluids; and (c) mechanics of deformable media, which studies the deformation of solid bodies under applied external forces.
