Trusses, Frames & Machines

This lecture covers the analysis of trusses, frames, and machines, focusing on the joints and section methods. The instructor explains the strategy to solve problems related to internal loads and reactions at supports, using equilibrium equations on each member. Examples, such as the mechanics of a ladder, are used to illustrate the concepts. The lecture emphasizes the importance of identifying zero-force members and determining support forces to analyze truss structures effectively.