A spring with a spring constant k = 56.0 N/m has a weight with a mass of 1.00 kg attached to its end. The weight is pulled +5.5 cm and then pushed in such a way that it acquires an initial speed of -0.32 m/s. What is the equation of motion for the resulting oscillation? What is the amplitude of this oscillation? What is the phase angle, express in degrees?.