MomentofInertia

# MomentofInertia - MOMENT OF INERTIA I = mi ri 2 Moment of...

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MOMENT OF INERTIA 2 ii I mr = Moment of Inertia The rotational KE can now be expressed in terms of the Moment of Inertia: 2 1 2 R KI ω = Rotational Kinetic Energy a) The SI unit of ‘I’ is the kg m 2 b) ‘I’ is the rotational analog of mass. 2 1 2 T K mV = Translational Kinetic Energy mI V Just as mass is a measure of the tendency of resistance of an object to changes in its linear motion, we can say that: c) Moment of Inertial is a measure of the tendency of resistance of an object to changes in its rotational motion. ± The larger ‘I’, the larger the tendency of resistance to changes in its rotational motion ± The smaller ‘I’, the smaller the tendency of resistance to changes in its rotational motion
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## This note was uploaded on 09/02/2011 for the course PHYS 2A taught by Professor Luna during the Fall '09 term at DeAnza College.

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