A 0.0346 kilogram bullet is fired horizontally into a 3.67 kilogram wooden block attached to one end of a mass less, horizontal spring (k = 860 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 block/bullet to oscillate with amplitude of 0.170 meter. Find what is the speed of the bullet?