An arrow is shot from rest. The arrow leaves the bow at a speed of 110m/s, 0.25s later. What is the arrow’s acceleration?

Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)