A ring of mass `(2pi)kg` and of radius `0.25m` is making `300rp m` about an axis through its perpendicular to its plane. The tension in newton developed in ring is approximately

A ring of mass 10 kg and diameter 0.4m is rotated about an axis passing through its centre and perpendicular to its plane moment of inertia of the ring is

A disc of mass 2 kg and radius 0.2 m is rotating about an axis passing through its centre and perpendicular to its plane with an angular velocity 50 rad/s . Another disc of mass 4 kg and radius 0.1m rotates about an axis passing through its centre and perpendicular to its plane with angular velocity 100 rad/s. If the two disc are coaxially coupled, then the angular velocity of coupled system would be

A thin ring has mass 0.25 kg and radius 0.5 m. Its moment of inertia about an axis passing through its centre and perpendicular to its plane is ………… .

A disc of mass 4 kg and radius 0.2 m, makes 20 rev/s, about an axis passing through its centre and perpendicular to the plane of the disc. The angular momentum of the disc is approximately equal to

What is the moment of inertia of a ring of mass 2kg and radius 50 cm about an axis passing through its centre and perpendicular to its plane ? Also find the moment of inertia about a parallel axis through its edge.

A ring of mass 6kg and radius 40cm is revolving at the rate of 300 rpm about an axis passing through its diameter. The kinetic energy of rotation of the ring is

Moment of inertia of a ring of mass M and radius R about an axis passing through the centre and perpendicular to the plane is

A ring of mass m and radius r rotates about an axis passing through its centre and perpendicular to its plane with angular velocity omega . Its kinetic energy is