Chapter 5B Rotational Equilibrium

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<strong>Equilibrium</strong>• An object is said to be in equilibrium ifand only if there is no resultant forceand no resultant torque.FirstCondition:Fx0; F 0ySecondCondition: 0
Does <strong>Equilibrium</strong> Exist?T30 0Is YES! the system Observationleft inshows equilibrium that no part both ofthe translationally system is changing andits state rotationally? of motion.A sky diver moments after the jump? Yes or NoNo?A sky diver who reaches terminal speed? YesA fixed pulley rotating at constant speed? Yes
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Page 12 and 13: Example 1 (Continued). Find A and B
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Page 20 and 21: Example 3: (Cont.)Rotational Equili
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Page 24 and 25: Reminder on Signs:Absolute valuesap
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Chapter 5B Rotational Equilibrium

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