MomentofInertia

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

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
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
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Ask a homework question - tutors are online