Elastic Collisions: Conservation Laws and Kinetic Energy

This lecture covers the analysis of collisions between two bodies based on conservation laws, studying the forces involved. It includes the modeling of isolated systems, conservation of total momentum and total energy, and the exchange of momentum during and after collisions. The lecture also discusses collisions between point masses, choosing a reference frame to simplify calculations, and the conservation of momentum and kinetic energy. Special cases, such as elastic collisions and unidimensional collisions, are explored, along with the conditions to be satisfied. The instructor demonstrates the concepts with examples like collisions between billiard balls and the effects of mass differences on collision outcomes.