1. The problem statement, all variables and given/known data A 2-kg block is dropped from a height of 0.4 m onto a spring force whose constant k is 1960 N/m. Find the maximum distance the spring will be compressed. 2. Relevant equations U1+K1=U2+K2 3. The attempt at a solution both the initial and final kinetic energy should be 0 so we should get an equation like this: mgh=(1/2)kx^2+mg(value) I can't find an expression to put in for value that only has x and no other unknown variables.