Lecture
This lecture covers the concept of center of mass movement in physics, explaining the general method of resolution for forces acting on an object, the definition of momentum, and Newton's third law. It also delves into the position of the center of mass for objects with multiple parts and provides examples of symmetric and asymmetric weight distributions. The conservation of momentum during collisions and the trajectory of the center of mass are discussed, emphasizing the role of external forces in altering an object's momentum. The lecture concludes with remarks on the global movement of the object and the application of Newton's third law to the center of mass.