What is radius of gyration ?

A solid sphere has a radius R . If the radius of gyration of this sphere about its diameter is sqrt(2//5) R , show that the radius of gyration about the tangential axis of rotation is sqrt(7//5) R

Show that the ratio of radius of gyration of a thin ring about a tangential axis in its plane to its radius of gyration about an axis passing through its Centre and perpendicular to its plane is 1.225

The rotational kinetic energy of a body is E. In the absence of external torque, the mass of the body is halved and its radius of gyration is doubled. Its rotational kinetic energy is

The radius of gyration a body about an axis at a distance of 6 cm from its centre of mass is 10cm. Find its radius of gyration about a parallel axis through the centre of mass?

If the moment of inertia of a rigid body is numerically equal to twice its mass, its radius of gyration is

A body of mass M is rotating about an axis with angular velocity omega . If k is radius of gyration of the body about the given axis, its angular momentum is

8 kg wheel has radius of gyration (1/4) m. The torque required to give it an angular acceleration of 4 rad/s^2 , is

A flywheel of mass 4 kg has radius of gyration 0.4 m. Calculate the kinetic energy of rotation when it makes 5 r.p.s

The radius of a wheel is R and its radius of gyration about an axis passing through its centre and perpendicular to its plane is k. If the wheel is rolling without slipping , the ratio of its rotational kinectic energy to its translational kinectic energy is

The radius of a wheel is R and its radius of gyration about an axis passing through its centre and perpendicular to its plane is K. If the wheel is rolling without slipping the ratio of its rotational kinetic energy to its translational kinetic energy is