The axis X and Z in the plane of a disc are mutually perpendicular and Y-axis is perpendicular to the - Physics - Systems of Particles and Rotational Motion

Question

The axis X and Z in the plane of a disc are mutually perpendicular
and ​Y-axis is perpendicular to the plane of the disc If
moment of inertia of the body about X and Y axes is 30 and 40 then
moment of inertia about Z-axis will be?

Nikhil · Answer

According to perpendicular axix theorem: Iz = Ix + Iy
==> Iz = 30+40 = 70

The axis X and Z in the plane of a disc are mutually perpendicular and ​Y-axis is perpendicular to the plane of the disc. If moment of inertia of the body about X and Y axes is 30 and 40 then moment of inertia about Z-axis will be?

The axis X and Z in the plane of a disc are mutually perpendicular and Y-axis is perpendicular to the plane of the disc. If moment of inertia of the body about X and Y axes is 30 and 40 then moment of inertia about Z-axis will be?