Saturday, October 5, 2019

rotational dynamics - A question about the tennis racket theorem with degenerate eigenvalues I1,I2,I3


If a rigid body has a symmetry such that two of the principal moments of inertia are equals, i.e. I1=I2>I3orI1>I2=I3.

Are the rotations around the principal axes stable?




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classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?

I am studying Statics and saw that: The moment of a force about a given axis (or Torque) is defined by the equation: $M_X = (\vec r \times \...