Parallel axis theorem
Io=Ig+ml^2.
Same angle rules
From the known angle, two lines have to be either both perpendicular or both parallel.
Newtons Law Of Rotation
Itheta..=FcD
Rolling Motion
Rolling motion has two equations for the rotation and translation, even if there might only be one degree of freedom.
(Use this example when talking about learning, the idea that if I base it off intuitution of degrees of freedom, it is not obvious. BUt if the book says this a specific equation to memorize then I don’t question.