A 1.00 X 10^-2 kg bullet is fired horizontally into a 2.50-kg wooden block attached to one end of a massless, horizontal spring (k=845 N/m). The other end of the spring is fixed in place, and the spring is unstrained initially. The block rests on a horizontal, frictionless surface. The bullet strikes the block perpendicularly and quickly comes to a halt within it. As a result of this completely inelastic collision, the spring is compressed along its axis and causes the bullet/block to oscillate with an amplitude of 0.200-meters. What is the speed of the bullet?