Introduction 3)The content of theoretical mechanics Statics: Studies the laws of equilibria of material bodies subjected to the action of forces, the general character of forces and the methods to simplify force systems Kinematics: Deals with the general geometrical description of the motions of bodies, does not study the reasons of their motions Dynamics: Studies the laws of motion of material bodies under the action of forcesStatics: Kinematics: Dynamics: Studies the laws of equilibria of material bodies subjected to the action of forces, the general character of forces and the methods to simplify force systems. Deals with the general geometrical description of the motions of bodies, does not study the reasons of their motions. Studies the laws of motion of material bodies under the action of forces. 3) The content of theoretical mechanics