Lecture+13

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

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440:221 Intro to Engineering Mechanics: Statics Instructor: Alberto Cuitino TA: Pam Carabetta and Jingru Zhang Lecture 13 Fall 2009 1 Based on Textbook Material: Engineering Mechanics Statics, 12 th Edition, R.C. Hibbeler, Pearson 2010.
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440:221 Lectures quilibrium of a IGID BODY Equilibrium of a RIGID BODY A School of Engineering, Fall 2009 2
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440:221 Lectures opics to be covered Topics to be covered • What are the equations of equilibrium in 2D for a rigid body? • What is a two- and three-force member? • How do we solve equilibrium problems? School of Engineering, Fall 2009 3
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440:221 Lectures onceptual Question 1 Conceptual Question 1 1. The beam and the cable (with a frictionless pulley at D) support an 80 kg load at C. In a FBD of only the beam, there are how many unknowns? A) 2 forces and 1 couple moment B) 3 forces and 1 couple moment C) 3 forces C) 3 forces School of Engineering, Fall 2009 D) 4 forces
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440:221 Lectures onceptual Question 2 Conceptual Question 2 If the directions of the force and the couple moments 2. If the directions of the force and the couple moments are both reversed, what will happen to the beam? A)
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Lecture+13 - 440:221 Intro to Engineering Mechanics:...

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