1. The problem statement, all variables and given/known data 14.10 Solve Prob. 12.47 by the work-energy method 12.47 When the 1.8-kg block is in the position shown, the attached spring is undeformed. If the block is released from rest in this position, determine its velocity when it hits the floor 2. Relevant equations 3. The attempt at a solution Here is my solution to both 12.47 and 14.10. I get in 14.10 the correct answer but I am confused with 12.47. Is it correct?