Two metal disks, one with radius R =2.40 cm and mass M0.900 kg and the other with radius R = 4.90 cm and mass M = 1.60 kg, are welded together and mounted on a frictionless axis through their common center (Figure 1). Figure 1 of 1 Y What is the total moment of inertia of the two disks? Express your answer with the appropriate units. I= Part B UM A Value Value Units A light string is wrapped around the edge of the smaller disk, and a 1.50 kg block is suspended fro free end of the string. If the block is released from rest at a distance of 2.00 m above the floor, wha speed just before it strikes the floor? Express your answer with the appropriate units. 5 O Units ? ?