A block of mass 0.472 kg is hung from a vertical spring and allowed to reach equilibrium at rest. As a result, the spring is 7.28 N/m stretched by 0.635 m. Find the spring constant. @ Macmillan Learning The block is then pulled down an additional 0.372 m and released from rest. Assuming no damping, what is its period 1.599 S of oscillation? How high above the point of release does the block reach as it oscillates? m