Two discs A and B are in contact and rotating with angular velocity with angular velocities `omega_(1) and omega_(2)` respectively as shown. If there is no slipping between the discs, then

Two uniform circular rough disc of moment of inertia I_(1) and (I_(1))/(2) are rotating with angular velocity omega_(1) and (omega_(1))/(2) respectively in same direction. Now one disc is placed the other disc co-axially. The change in kinetic energy of the system is :

Two uniform circular rough disc of moment of inertia I_(1) and (I_(1))/(2) are rotating with angular velocity omega_(1) and (omega_(1))/(2) respectively in same direction. Now one disc is placed the other disc co-axially. The change in kinetic energy of the system is :

A clutch assembly consists of two discs A and B of moment of inertia 2I and I respectively, one being the engine fly wheel, the other one is the clutch plate. The discs are initially rotaing with angular velocities omega_(A)=omega and omega_(B)=2omega as shown in fig. When the two disc are brought into contact the discs rub against each other and eventually reach a common angualr velocity omega . (a) Derive an expressio for omega (b) What is the angular impulse of friction on any one of the discs?

Two discs of same moment of inertia rotating their regular axis passing through centre and perpendicular to the plane of disc with angular velocities omega_(1) and omega_(2) . They are brought into contact face to the face coinciding the axis of rotation. The expression for loss of energy during this process is :

Two discs of same moment of inertia rotating their regular axis passing through centre and perpendicular to the plane of disc with angular velocities omega_(1) and omega_(2) . They are brought into contact face to the face coinciding the axis of rotation. The expression for loss of enregy during this process is :

Two discs of same moment of inertia rotating their regular axis passing through centre and perpendicular to the plane of disc with angular velocities omega_(1) and omega_(2) . They are brought into contact face to the face coinciding the axis of rotation. The expression for loss of enregy during this process is :

Two discs of moments of inertia I_1 and I_2 about their respective axes , rotating with angular frequencies omega_1 and omega_2 respectively, are brought into contact face to face with their axes of rotation coincident. The angular frequency of the composite disc will be

Two discs of moments of inertia I_1 and I_2 about their respective axes, rotating with angular frequencies, omega_1 and omega_2 respectively, are brought into contact face to face with their axes of rotation coincident. The angular frequency of the composite disc will be A .