Center of Gravity: Theory and Applications

This lecture covers the concept of center of gravity (CG) in physics, explaining how it is the point where the weight of an object can be considered concentrated. It discusses how the CG is determined for symmetrical and homogeneous objects, as well as the calculation of the CG for multiple aligned bodies. Additionally, it explores the concept of center of mass for material points and continuous bodies, along with practical methods to determine their positions. The lecture also delves into the calculation of moments and the application of couple forces, concluding with an explanation of mechanical advantage in levers and the principles of circular motion.