Lecture
This lecture covers the fundamental concepts of statics, focusing on moments of force, virtual work principle, and equilibrium conditions. The instructor emphasizes the importance of understanding static equilibrium before delving into dynamics. Through practical examples and theoretical explanations, the lecture explores the application of D'Alembert's principle and the concept of conservative and non-conservative forces in static systems. The lecture concludes with a discussion on the calculation of virtual work and the determination of forces in equilibrium and dynamic systems.