Uniform Motion: Acceleration and Reference Frames

This lecture covers the description of uniformly accelerated motion, the concept of reference frames, and the calculation of average velocity and displacement. It also discusses the importance of choosing the right reference frame and units for measurements, as well as the distinction between average and instantaneous velocity and acceleration. The instructor demonstrates these concepts through examples like a moving train and the motion of a ball. The lecture concludes with equations for uniformly accelerated rectilinear motion and the calculation of average acceleration. Various systems of units are presented, including the International System (SI) and the centimeter-gram-second (cgs) system.