ch8+1410+FA11+part+2

ch8+1410+FA11+part+2 - Torque and Angular Acceleration When...

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Torque and Angular Acceleration ! When a rigid object is subject to a net torque ( 0), it undergoes an angular acceleration ! The angular acceleration is directly proportional to the net torque ! The relationship is analogous to F = ma ! Newton’s Second Law
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Newton’s Second Law for a Rotating Object ! The angular acceleration is directly proportional to the net torque ! The angular acceleration is inversely proportional to the moment of inertia of the object
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Moment of Inertia ! The angular acceleration is inversely proportional to the analogy of the mass in a rotating system ! This mass analog is called the moment of inertia, I, of the object ! SI units are kg m 2
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More About Moment of Inertia ! There is a major difference between moment of inertia and mass: the moment of inertia depends on the quantity of matter and its distribution in the rigid object. ! The moment of inertia also depends upon the location of the axis of rotation
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Moment of Inertia of a Uniform Ring !
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