Variable Mass Systems and Accelerated Frames

This lecture covers the concept of variable mass systems and accelerated frames, discussing topics such as the thrust of a rocket, conditions for liftoff, relative reference frames, and the apparent weight in different scenarios. The instructor, Dr. Sylvain Bréchet from EPFL, explains the laws of motion in both absolute and relative frames, the forces of inertia, and the effects of acceleration on pendulums and centrifuges.