A 20-g bullet is fired horizontally into the 300-g block which rests on the smooth surfa...

A 20-g bullet is fired horizontally into the 300-g block which rests on the smooth surface. After the bullet becomes embedded into the block, the block moves to the right 0.3 m before momentarily coming to rest. Determine the speed of the bullet. The spring has a stiffness k = 200 N/m and is originally unstretched.