Lecture 13 sect 4.1

Lecture 13 sect 4.1 - ME 221 Statics Lecture#13 Sections...

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ME221 Lecture 13 1 ME 221 Statics Lecture #13 Sections 4.1 – 4.2
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ME221 Lecture 13 2 Homework #5 Chapter 3 problems: May use MathCAD, etc. to solve Due Friday, October 3
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ME221 Lecture 13 3 Distributed Forces (Loads); The concept of distributed loads will be introduced Center of mass will be discussed as an important application of distributed loading mass, (hence, weight), is distributed throughout a body; we want to find the “balance” point
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ME221 Lecture 13 4 Distributed Loads Two types of distributed loads exist: forces that exist throughout the body e. g., gravity acting on mass these are called “body forces” forces arising from contact between two bodies these are called “contact forces”
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ME221 Lecture 13 5 Contact Distributed Load Snow on roof, tire on road, bearing on race, liquid on container wall, . ..
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ME221 Lecture 13 6 Center of Gravity x y z w 5 (x 5 ,y 5 ,z 5 ) ˜ ˜ ˜ x y z
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Lecture 13 sect 4.1 - ME 221 Statics Lecture#13 Sections...

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