Let I₁ and I₂ be the moments of inertia of two bodies of identical geometrical shape, the first made of aluminum and the second of iron.

A closed cylindrical tube containing some water (not filling the entire tube) lies in a horizontal plane. If the tube is rotated about a perpendicular bisector, the moment of inertia of water about the axis

The moment of inertia of a uniform semicircular wire of mass M and radius r about a line perpendicular to the plane of the wire through the center is

A body having its center of mass at the origin has three of its particles at (a,0,0) (0, a,0), (0,0, a). The moments of inertia of the body about the X and Y axes are

0.2 kgm² each. The moment of inertia about the Z-axis

A cubical block of mass M and edge a slides down a rough inclined plane of inclination e with a uniform velocity. The torque of the normal force on the block about its center has a magnitude