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Chapter 3 - Summary

Chapter 3 - Summary - SUMMARY CHAPTER 3 Conditions for...

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SUMMARY – CHAPTER 3 Conditions for Equilibrium Two Dimensions Three Dimensions 0 0 0 x y F F F Σ = Σ = Σ = G 0 0 0 0 x y z F F F F Σ = Σ = Σ = Σ = G Procedure for Drawing Free Body Diagrams (FBD) 1. Establish X, Y, Z coordinate system in a suitable orientation 2. Sketch object of interest 3. Draw and label known and unknown forces acting on object Sense of unknown forces can be assumed 4. Apply equations of equilibrium 5. Solve for unknown force(s) If the solution is negative, the assumed sense of the unknown force was incorrect

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