[SOLVED] Horizontal Speed of bullet fragment 1. The problem statement, all variables and given/known data A 14-kg shell is fired from a gun with a muzzle velocity 125 m/s at 33o above the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment, whose speed immediately after the explosion is zero, falls vertically. What is the horizontal speed of the other fragment? 2. Relevant equations 3. The attempt at a solution I divided the mass by two, because the bullet splits into two equal fragments. I have no idea how to figure out the horizontal speed of the second fragment. Can someone please explain this to me?