1. The problem statement, all variables and given/known data The problem is to use conservation of energy to determine the equation for the velocity at the equilibrium position of an oscillating mass on a vertical spring. The question says to use three types of energy. The question gives the equation, the problem is to solve for it. The equation is v=A(k/m)^.5 2. Relevant equations Uelastic+Ugravitational+Ukinetic=Uelastic+Ugravitational+Ukinetic 3. The attempt at a solution The initial position I chose was at the bottom of the mass's motion and the final at equilibrium, so inital kinetic and final elastic and gravitational are zero. mgh+.5kx^2=.5mv^2 since h and x are the amplitude, mgA+.5kA^2=.5v^2 simplifying gives, 2gA+(k/m)A^2=v^2 How do I get rid of the gravity term?