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Unformatted text preview: Chapter 9: Rotation of Rigid Bodies 1. Angular Velocity and Acceleration Radian 360 1rad 57.3 2 = = s r = s r = Angular Velocity : (omega) not w Direction of angular velocity : Righthand rule , av z t = lim z t d t dt = = Angular Acceleration : , z av z t = 2 2 lim z z z t d t dt d d d dt dt dt = = = = 2. Rotation with Constant Angular Acceleration Recall Chap. 2 (motion with constant acceleration) ( ) z z z t t = + 2 1 ( ) 2 z z t t t = + + 2 2 2 ( ) z z z = + 2 z z t + = ( ) x x x v t v a t = + 2 1 ( ) 2 x x x t x v t a t = + + 2 2 2 ( ) x x x v v a x x = + 2 x x v v x x t + = Rotation with Constant Angular Acceleration Motion with Constant Acceleration Example 9.3) DVD player. The angular velocity at t= 0 is 27.5 rad/s and its angular acceleration is constant 10.0 rad/s 2 . A line PQ on the surface of the disc lies along the...
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This note was uploaded on 02/13/2012 for the course RANDOM 100 taught by Professor Idk during the Fall '08 term at Virginia Tech.
 Fall '08
 idk

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