Angular momentum of body changes by 80 kg `m^(2)//s`, when its angular velocity changes from 20 rad/s to rad/s. Then the change in its kinetic energy is

Angular momentum of body changes by 80 kg m2/s, when its angular velocity changes from 20 rad/sto 40 rad/s. Then the change in its kinetic energy is

The angular momentum of a body changes by 80kg m^(2)s^(-1) when its angular velocity changes from 20 rad s^(-1) to 40 rad s^(-1) . Find the change in its kinetic energy of rotation.

The angular momentum of a body changes by 80 kgm^2s^-1 when its angular velocity changes from 20 rad s^-1 to 40 rad s^-1 . Find the change in K.E of rotation.

A body rotates about a fixed axis with an angular acceleration of 5 rad//s^(2) The angle rotated by it during the time when its angular velocity increases frm 20 rad/s to 30 rad/s (in radian) is

A body rotates about a fixed axis with an angular acceleration of 3 rad//s^(2) . The angle rotated by it during the time when its angular velocity increases frm 10 rad/s to 20 rad/s (in radian) is