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The study of the movements of a collection of connected bodies subject to external forces in the absence of deformation. This tag should be used for questions on the analysis of 2D/3D dynamics of rigid bodies, do NOT use this tag because your question contains a rigid structure.

2 votes
0 answers
125 views

Wheel rolling leaned against a vertical wall

I'm new with rigid problems about. I'm trying to solve this: A massive circular disk of mass m, radius R, and negligible thickness is leaned against a vertical wall, slanting by 45 . In the grav …
Gabriel Sandoval's user avatar
3 votes
1 answer
548 views

The tennis racket theorem with degenerate eigenvalues $I_1, I_2 , I_3$: Are the rotations ar...

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? …
Gabriel Sandoval's user avatar