The 56 $$kg$$ projectile is loaded into a spring launcher using a string for a game. It is acted upon by a constant force of 255 $$N$$ via a cable as shown. The projectile begins at rest at A, with the spring it is attached to compressed by an initial amount 0.215 $$m$$. The spring stiffness is $$k =$$ 96 $$N/m$$. Calculate the velocity of the block when it reaches point B, $$d =$$ 1.03 $$m$$ away. Assume $$h =$$ 1.27 $$m$$.
Please enter in a numeric value in $$m/s$$.