1. The problem statement, all variables and given/known data A spring is hung vertically from a support. A mass of 4.5 kg is hung from the lower end of the spring and is slowly lowered a distance of 22.0 cm until equilibrium is reached. This mass is then lowered to a point 15.0 cm below the equilibrium point and is then released, after with the mass vibrates up and down in simple harmonic motion. It says the answer is 200n/m but I must be doing something wrong! 2. Relevant equations k=f/x f=-kx 3. The attempt at a solution x=-.15 m f= 4.5 * 9.8=44.1N k=f/x, k=44.1/-.15= -294? what am I doing wrong??