A 5.40 g bullet is fired horizontally at two blocksresting on a smooth tabletop, as shown in the top figure. Thebullet passes through the first block, with mass 1.20 kg,and embeds itself in the second, with mass 1.80 kg. Speedsof 0.340 m/s and 1.07 m/s, respectively, arethereby imparted to the blocks, as shown in the bottom figure.Neglecting the mass removed from the first block by the bullet,find the speed of the bullet immediately after it emerges from thefirst block. Then find the bullets original speed.
