340_Physics ProblemsTechnical Physics

340_Physics ProblemsTechnical Physics - 342 P11.45 Angular...

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342 Angular Momentum P11.45 (a) Im r m d m d m d m d ii = = F H G I K J + F H G I K J + F H G I K J = 2 22 2 2 4 33 2 3 7 3 mm m 123 dd P 2 3 d FIG. P11.45 (b) Think of the whole weight, 3 mg , acting at the center of gravity. τ =× = F H G I K J −× −= rF i j k d mg mgd 3 3 ±± ± ej bg (c) α == = I mgd md g d 3 7 3 7 2 counterclockwise (d) ar g d d g F H G I K J F H G I K J = 3 7 2 3 2 7 up The angular acceleration is not constant, but energy is. KU E KU mg d I if f ++=
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

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