Lecture 09

# Lecture 09 - Lecture 09 * EQUILIBRIUM OF A RIGID BODY *...

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Statics: Lecture Notes for Sections 5.1,5.3 1 Lecture 09 * EQUILIBRIUM OF A RIGID BODY * FREE-BODY DIAGRAMS * EQUATIONS OF EQUILIBRIUM Section 5.1-5.3 Ehab Zalok EQUILIBRIUM OF A RIGID BODY & FREE-BODY DIAGRAMS Objectives : Students will be able to: a) Identify support reactions, and, b) Draw a free-body diagram. 2

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Statics: Lecture Notes for Sections 5.1,5.3 2 READING QUIZ 1. If a support prevents translation of a body, then the support exerts a ___________ on the body. 1) couple moment 2) forc 2) force 3) Both 1 and 2. 4) None of the above 2. Internal forces are _________ shown on the free body diagram of a whole body. 3 A) always B) often C) rarely D) never APPLICATIONS A 200 kg platform is suspended off an oil rig. 4 How do we determine the force reactions at the joints and the forces in the cables? How are the idealized model and the free body diagram used to do this?
Statics: Lecture Notes for Sections 5.1,5.3 3 APPLICATIONS (continued) A steel beam is used to support roof joists. How can we determine the 5 How can we make use of an idealized model and a free body diagram to answer this question? CONDITIONS FOR RIGID-BODY EQUILIBRIUM

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## This note was uploaded on 02/28/2011 for the course MATH 101 taught by Professor Duke during the Spring '11 term at University of Ottawa.

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Lecture 09 - Lecture 09 * EQUILIBRIUM OF A RIGID BODY *...

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