Disk A has a moment of inertia of 4.91 kg m2 and an angular velocity of 3.80 rad s Disk B is rotating with an angular velocity of 9.07 rad s The two disks are then linked together without the aid of any external torques so that they rotate as a single unit with an angular velocity of 2.66 rad s The axis of rotation for this unit is the same as that for the separate disks What is the moment of inertia of disk B