MIDTERM 2 PHYSICS 1A
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Lecture 28 Moment of Inertia
To compute the angular momentum and rotational energy of an extended object, we need
to introduce the moment of inertia.
For a point mass, M , in circular motion or radius, R, we write that the angular momentum, J is:
J = M R2
Lecture 29 Rotational Dynamics I
We can now consider the dynamical evolution of rotating objects.
One example is an isolated system whose total angular momentum, L, is conserved.
We can write for the scaler quantities that
L = I
where I is the moment