Lecture+05 - 440:221 Intro to Engineering Mechanics:...

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440:221 Intro to Engineering Mechanics: Statics 1 Lecture 5 Particle Systems Spring 2011 Based on Textbook Material: Engineering Mechanics Statics, 12 th Edition, R.C. Hibbeler, Pearson 2010. Alberto Cuitino, Kimberly Cook-Chennault, Kathryn Higgins Instructors Gulsad Kucuk, Stephen Indyk, Tushar Saraf Assistants
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440:221 Lectures School of Engineering, Spring 2011 Topics to be covered What is equilibrium? How do we find the forces that make a system to be in equilibrium? What is a Free Body Diagram (FBD)? How do we deal with cables, springs and pulleys? 2
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440:221 Lectures School of Engineering, Spring 2011 3
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440:221 Lectures School of Engineering, Spring 2011 Equilibrium 4 Σ F = 0 Free Body Diagram What Forces?
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440:221 Lectures School of Engineering, Spring 2011 Free Body Diagrams are one of the most important things for you to know how to draw and use. What ? - It is a drawing that shows all external forces acting on the particle. Why ? - It is key to being able to write the equations of equilibrium—which are used to solve for the unknowns (usually forces or angles).
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Lecture+05 - 440:221 Intro to Engineering Mechanics:...

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