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Unformatted text preview: 131Physics IClass 13GeneralRotational MotionRev. 19Feb06 GB132DefinitionsAngular Position:(normally in radians)Angular Displacement:=Average or mean angular velocity is defined as follows:tttavgInstantaneous angular velocity or just angular velocity:tddtlimtWait a minute! How can an angle have a vector direction?133Direction of Angular Displacement and Angular VelocityUse your right hand.Curl your fingers in the direction of the rotation.Outstretched thumb points in the direction of the angular velocity.134Angular AccelerationAverage angular acceleration is defined as follows:tttavgInstantaneous angular acceleration or just angular acceleration:22ttddtddtlimThe easiest way to get the direction of the angular acceleration isto determine the direction of the angular velocity and thenIf the object is speeding up, angular velocity and accelerationare in the same direction....
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This note was uploaded on 12/15/2010 for the course PHYS 0001 taught by Professor Nayak during the Spring '10 term at Rensselaer Polytechnic Institute.
 Spring '10
 NAYAK
 Physics

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