I(CM) is the moment of inertia of a circular disc about an axis through its centre and perpendicular to its plane. I(AB) is its moment of inertia about a parallel axis AB at a distance 2R/3 from the centre, where R is the radius of the disc. The ratio I(AB):I(CM) is x:9. The value of x is:
Physics · Rotational Motion · moment of inertia and kinetic energy in pure rotation
I(CM) is the moment of inertia of a circular disc about an axis through its centre and perpendicular to its plane. I(AB) is its moment of inertia about a parallel axis AB at a distance 2R/3 from the centre, where R is the radius of the disc. The ratio I(AB):I(CM) is x:9. The value of x is:
