Here is a device that can rotate freely with little friction with the axlw. The radius is 0.5 m, and each of the eight balls has a mass of 0. The...

Here is a device that can rotate freely with little friction with the axlw. The radius is 0.5 m, and each of the eight balls has a mass of 0.5 kg. The device is initially not rotating. A piece of clay falls and sticks to one of the balls as shown in the figure. The mass of the clay is 0.1 kg and its speed just before the collision is 13 m/s.