Pendulum Dynamics and Friction

This lecture covers the dynamics of a pendulum attached to a rotating door, including equations of motion and minimum force calculations to slide objects. It also discusses the physics of a heavy body on a hemisphere, car motion in a bend, and frictional forces on a car. The slides provide examples of material point dynamics, centrifugal forces, and equilibrium conditions. The lecture emphasizes practical applications of laws of motion and energy, with exercises on momentum, work, and energy calculations.