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Unformatted text preview: radius r is I=0.5mr 2 Solution: Moment of inertia: Work: Kinetic energy: Principle of work and energy: Solving for I: Equating the two expressions of I: August 2000 Q3 A 9 kg block is initially held so that the vertical spring attached as shown is undeformed. Knowing that the block is suddenly released from rest, determine ( a ) the amplitude and frequency of the resulting motion, ( b ) the maximum velocity and maximum acceleration of the block. Solution: August 2000 Q4 A gear reduction system consists of three gears A , B , and C . Knowing that gear A rotates clockwise with a constant angular velocity ω A = 600 rpm, determine ( a ) the angular velocities of gears B and C , ( b ) the accelerations of the points on gears B and C which are in contact. Solution: August 2000...
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This note was uploaded on 11/09/2009 for the course ENG 91301 taught by Professor Lui during the Spring '08 term at Hong Kong Institute of Vocational Education.
 Spring '08
 LUI
 Dynamics

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