A 3.0 rm kg block is attached to a string that is wrapped around a 2.0 rm kg, 4.0-rm cm-diameter hollow cylinder that is free to rotate. (Use Figure 12.34 in the textbook but treat the cylinder as hollow.) The block is released 1.0 rm m above the ground. Use Newton's second law to find the speed of the block as it hits the ground.Use conservation of energy to find the speed of the block as it hits the ground.