A disc of moment of inertia `2 kg -m^(23)` revolving with `8 rad//s` is placed on anothere disc of moment of inertia `4 kg-m^(2)` revolving `4 rad//s`.What is the angular frequency of composite disc?

A disc of moment of inertia 4kgm^2 is spinning freely at 3rads^(-1) . A second disc of moment of inertia 2kgm^2 slides down the spindle and they rotate together. (a) What is the angular velocity of the combination ? (b) What is the change in kinetic energy of the system?

A round disc of moment of inertia I_2 about its axis perpendicular to its plane and passing through its centre is placed over another disc of moment of inertia I_1 rotating with an angular velocity omega about the same axis. The final angular velocity of the combination of discs is.

A uniform disc of moment of inertia 1 kg m^2 rotates with a speed of 120 rpm, Calculate the torque required to stop the disc in 10 revolutions ?

The rotational kinetic energy of a disc is 450 J and its moment of inertia is 100 kg m^2 . What is its angular momentum ?

One quarter of the disc of mass m is removed. If r be the radius of the disc, the new moment of inertia is

A body of moment of inertia of 3 kg m^2 rotating with an angular velocity of 2 rad/s has the same kinetic energy as that of mass 12 kg moving with a velocity of

A body of moment of inertia of 3 kg m^(2) rotating with an angular velocity of 2 rad/s has the same kinetic energy as that that of mass 12 kg moving with a velocity of

A disc of radius 10 cm can rotate about an axis passing through its centre and perpendicular to its plane. A force of 10 N is applied along the tangent in the plane of the disc. If the moment of inertia of the disc about its centre is 5 kg m^(2) , then the increase in the angular velocity of the disc in 10 s will be

A disc of moment of inertia 9.8//pi^(2)kg m^(2) is rotating at 600 rpm. If the frequency of rotation changes from 600 rpm to 300 rpm, then what is the work done ?

A disc of moment of inertia 9.8//pi^(2)kg m^(2) is rotating at 600 rpm . If the frequency of rotation changes from 600 rpm to 300 rpm, then what is the work done?