A spring is suspended from a ceiling and a 256-g block is attached to it and pulled down to stretch the spring by 18.0 cm (A) from its natural length (B).

a. If the spring is stretched 12.0 cm when it reaches the equilibrium position, determine the spring constant. (1 - Think)

b. When the block is released, the mass-spring system undergoes simple harmonic motion. Calculate the maximum speed of the block. (2 - Think)

c. While oscillating, determine the acceleration of the block, when it is at a position of 6.0 cm below the equilibrium position. Include a FBD of the block at this position. (3 - Think) d. Determine the frequency of oscillation. (1 - Think)