Engineering Science 1022A/B/Y Lecture Notes - Lecture 11: Rigid Body
1 Jan 2019
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Document Summary
A two-force member has forces applied at only two points on the member. For a two-force member to be in equilibrium, the forces must have the same magnitude, act in opposite directions, and be acting along the line joining the two points where the forces are acting. Simplifies equilibrium analysis of rigid bodies since the direction of the resultant forces at a and b are known along the line joining points a and b. If a body is in equilibrium under the action of three forces and no couple moment, then the three forces must either concurrent or parallel.
