A hollow cylinder is made by welding two thin disks on either side of a thin ring. It is mounted on a axel and a 2 kg mass is hung from a cord wrapped around the ring. How far has the mass moved when its velocity is 2.43 m/s? Friction exerts a constant moment of.32 Nm. Specs - Ring: m = 300 g, r = 7 cm Disk: m = 500 g, r = 9 cm.