Question

hey i have a doubt the moment of inertia have two theorems.. is parallel and perpendicular is right?

Answer 1

listen the moment of inertia consists of 2 theorems that is theorem of parallel axis and theorem of perpendicular axis..... the theorem of parallel axis States that For a planar object, the moment of inertia about an axis perpendicular to the plane is the sum of the moments of inertia of two perpendicular axes through the same point in the plane of the object..... and theorem of perpendicular Axis states that the moment of inertia on and access is equal to the sum of moment of inertia on the other to access.... and this theorem to be taken in the reference of X Y and Z axis...

I= Mr^2+ Ma^2

Iz = Ix + Iy

I hope that this answer helps you.