1. The problem statement, all variables and given/known data A 3-kg block rests on top of a 2-kg block which is connected to a spring of constant 40 N/m. The upper block is suddenly removed. determine a)The maximum speed of the 2-kg block and b)the maximum height of the 2-kg block. 2. Relevant equationsThis is supposed to be done using work and kinetic energy, and the principle that states Initial KE + Work = Final KE. 3. The attempt at a solution Initially, the combined mass of the blocks on the spring is 5*9.8=49 N 49=-ky, so the initial y value is -1.23m. I figured the max speed would be at the point where the spring's displacement is 0, either on the way up or on the way down. I also figured the max height would be when the kinetic energy = 0 again. Am I missing anything with the way the problem is setup? The max height value I get isn't very close to the one in the back of the book.