Tiêu đề Day 18 - Statics 3 (1).pdf ✅

PRINCIPLES OF STRUCTURAL ANALYSIS AND DESIGN presented by: Engr. Mansour P. Aguas Kippap Civil Engineering STATICS 3
DAY 18: STATICS 3 LECTURE OUTLINE • Friction • Centroids • Moment of Inertia Life isn’t a matter of milestones but of moments.
DAY 18: STATICS 3 FRICTION Life isn’t a matter of milestones but of moments. Friction is a retarding force in a direction opposite to the direction of motion. Consider an object with weight W pulled by a force P until motion is impending. The resultant support reaction of the normal force N and friction force f is R = N2 + f 2 W P N f ∅ R R f N ∅