CE 2450 Chapter : Lesson 17
Document Summary
Alternative sets of equilibrium equations. Forces are applied at only two points on the member. Forces are applied at only three points on a member. Moment equilibrium can only be satisfied if the lines of action of all three forces are concurrent. A special case is when all forces are parallel and they intersect at infinity. The airstroke actuator at d is used to apply a force of f = 200n on the member at b. The wooden plank resting between the buildings defects slightly when it supports the 50- kg boy. This deflection causes a triangular distribution of load at its ends, having maximum intensities of wa and wb. Determine wa and wb , each measured in n/m, when the boy is standing 3m from one end as shown. Neglect the mass of the plank. The uniform rod ab has a weight of 15 lb. Determine the force in the cable when the rod is in the position shown.
