Explore the concepts of Center of Mass and Center of Gravity in this comprehensive 18-minute physics lesson. Distinguish between these two terms and understand their practical applications in physics problems. Learn how to determine the center of mass for irregular objects and solve center of gravity calculations. Follow along as the instructor demonstrates the process using a wrench and tackles scenarios involving point masses connected by both massless and weighted rods. Gain valuable insights into the formulas for x and y coordinates in center of gravity calculations, equipping you with essential knowledge for solving complex physics problems.