Mechanics is that science which deals with the action of forces on bodies and of the effects they produce. It is logically divided into two parts—statics which concerns the equilibrium of bodies at rest, and dynamics which concerns the motion of bodies. Dynamics, in turn, can be divided into kinematics— which is the study of the motion of bodies without reference to the forces which cause the motion—and kinetics, which relates the forces and the resulting motion.
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