Explore solutions to three challenging problems from OpenStax University Physics Vol 1, Chapter 3 in this 21-minute physics lecture recording. Delve into the intricacies of Problem 42, 80, and 85 as the instructor demonstrates problem-solving techniques using SageMath, a powerful mathematical software. Gain valuable insights into applying physics concepts and leveraging computational tools to tackle complex scenarios. Enhance your understanding of fundamental physics principles and develop practical skills in problem analysis and solution implementation.