Saturday, October 5, 2019

rotational dynamics - A question about the tennis racket theorem with degenerate eigenvalues $I_1, I_2 , I_3$


If a rigid body has a symmetry such that two of the principal moments of inertia are equals, i.e. $$I_1=I_2> I_3 \qquad{\rm or}\qquad I_1>I_2=I_3.$$ Are the rotations around the principal axes stable?




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