Version 1.0, August 31, 2001, Copyright, Hugh Jack 1993-2001

4. EQUILLIBRIUM

 

· Put simply equillibrium describes the condition where all forces are balanced (no acceleration). Static equillibrium describes the state where all forces are balanced, and the object is not in motion.

 

· For an object to be in equillibrium, all the forces and moments must be balanced for,

  1. - each particle in a rigid body
  2. - each rigid body
  3. - each object made up of rigid bodies

 

 

4.1 THE BASIC EQUATIONS OF STATICS

4.2 FREE BODY DIAGRAMS (FBD)

4.3 PRACTICE PROBLEMS