Theoretical Mechanics is a branch of physics that focuses on understanding the motion of objects and the forces acting upon them. It uses mathematical models and principles to describe how physical systems behave, often relying on concepts from classical mechanics, dynamics, and kinematics. This field provides a framework for analyzing various phenomena, from the motion of planets in space to the behavior of everyday objects. Theoretical Mechanics is essential for developing technologies in engineering, robotics, and aerospace, as it helps predict how systems will respond under different conditions.