Lecture+13 - 440:221 Intro to Engineering Mechanics:...

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440:221 Intro to Engineering Mechanics: Statics 1 Fall 2011 Based on Textbook Material: Engineering Mechanics Statics, 12 th Edition, R.C. Hibbeler, Pearson 2010. Alberto Cuitino, Po Ting Lin Instructors Arturo Villegas Assistants
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440:221 Lectures School of Engineering, Fall 2011 Topics to be covered • How is equilibrium of a rigid body different from equilibrium of particles? • What is the first (and VERY important) step in determining the equilibrium of a rigid body? • What do the different support do? 2
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440:221 Lectures School of Engineering, Fall 2011 Equilibrium of a RIGID BODY 3
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440:221 Lectures School of Engineering, Fall 2011 1. If a support prevents translation of a body, then the support exerts a ___________ on the body. A) Couple moment B) Force C) Both A and B. D) None of the above 2. Internal forces are _________ shown on the free body diagram of a whole body. A) Always B) Often C) Rarely D) Never Preliminary questions (reading quiz) B) Force B) Force D) Never D) Never
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School of Engineering, Fall 2011 How are the idealized model and the free body diagram used to do this? Which diagram above is the idealized model? The truck ramp has a weight of 400 lb. The ramp is pinned to the body of the truck and held in the position by the cable. How can we determine the cable tension and support reactions ? Applications
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Lecture+13 - 440:221 Intro to Engineering Mechanics:...

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