Shown in right video is the TOTAL angular velocity vector (MAGENTA) of the rotor, which is the vector sum of the red and blue angular velocity components. Note that the magnitude of the total angular ...

Therefore, the angular velocity of the disk is given by: ω = -ω 0 K + ω disk j. The angular acceleration vector α is simply the time derivative of the angular velocity vector ω: α = dω/dt. In taking ...