Lecture Notes for Sections 3.1-3.31EQUILIBRIUM OF A PARTICLE IN 2-DToday’s Objectives:Students will be able to :a) Draw a free body diagram (FBD), and,b) Apply equations of equilibrium to solve a 2-D problem.In-Class Activities:•Reading quiz•Applications•What, why and how of a FBD•Equations of equilibrium•Analysis of spring and pulleys•Concept quiz•Group problem solving•Attention quizREADING QUIZ1) When a particle is in equilibrium, the sum of forces acting on it equals ___ . (Choose the most appropriate answer)A) a constant B) a positive number C) zeroD) a negative number E) an integer. 2) For a frictionless pulley and cable, tensions in the cable (T1and T2) are related as _____ .A) T1> T2B) T1= T2C) T1< T2D) T1= T2sin θ
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