"Elephant in the way" kinetic energy problem. 1. The problem statement, all variables and given/known data http:/www.imgred.com/http://static.scribd.com/docs/736egzypod07v_files/image004.jpg I found this on one of those "OMG FUNNY" internet web pages. I am trying to attempt a solution. 2. Relevant equations Mechanical energy is conserved so Einitial=Efinal. Uinitial+Kinitial=Ufinal+Kfinal. mgyinitial+1/2mvinitial^2=mgyfinal+1/2mvfinal^2 3. The attempt at a solution KE+PE = Total Energy. When the 3kg object is released from a 5m. I am unsure on how to procede with this problem. How does the force constant k of the spring factor into the solution?