Write the parellel and perpendicular axis theorem.

Prove and write the perpendicular axis theorem.

MI of a thin circular disc about an axis passing through its centre and perpendicular to its plane is 1/2 MR^2 , where M is the mass of the disc and R is its radius. Find an expression for radius of gyratiuon of the disc about an axis tangential to the edge and peerpendicular to the plane of rotation.

Are the lines y=x and y+x=0 perpendicular?

Find an expression for MI of a thin circular RING about an axis passing through its centre and perpendicular to the plane of the ring.

Calculate the moment of inertia of a ring about in axis passing through centre and perpendicular to its plane.

State and prove theorem of perpendicular axes.