A shell is shot with an initial velocity vec$(v{)}_0$ of $44\frac{m}{s},$ at an angle of ${}_0=60$ with 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. How far from the gun does the other fragment land, assuming that the terrain is level and that the air drag is negligible?

m