Chapter_09_2 - Chapter9 Centroidsand CenterofGravity...

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03/16/10 Chapter 9 - Centroids 1 Chapter 9 Centroids and  Center of Gravity
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03/16/10 Chapter 9 - Centroids 2
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03/16/10 Chapter 9 - Centroids 3 Composite Bodies If a body is made up of several simpler bodies then a special technique can be used.
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03/16/10 Chapter 9 - Centroids 4 Procedure Divide body into several subparts. If the body has a hole or cutout, treat  that as negative area. Centroid will lie on line of symmetry. Create Table and calculate centroid.
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03/16/10 Chapter 9 - Centroids 5 = = = = = = = = = n 1 i i i n 1 i i n 1 i i i n 1 i i n 1 i i i n 1 i i A A z ~ z A A y ~ y A A x ~ x particle i the of weight W particle i the of s coordinate z ~ , y ~ , x ~ gravity of center the of s coordinate z , y , x th i th i i i
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03/16/10 Chapter 9 - Centroids 6 Area Body x c y c x c A y c A
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03/16/10 Chapter 9 - Centroids 7
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03/16/10 Chapter 9 - Centroids 8
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03/16/10 Chapter 9 - Centroids 9
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03/16/10 Chapter 9 - Centroids 10 1 ft 1 ft 2 ft 3 ft 3 ft Locate Centroid of the Composite Area
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03/16/10 Chapter 9 - Centroids 11 1 ft 1 ft 2 ft 3 ft 3 ft 1 2 3
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This note was uploaded on 03/15/2010 for the course CHE 115 taught by Professor Hasanyıldız during the Fall '09 term at Ege Üniversitesi.

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Chapter_09_2 - Chapter9 Centroidsand CenterofGravity...

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