A model rocket is fired from the ground in a parabolic arc. Atthe very top of the arc, at a horizontal displacement of 260 m fromthe launch point, an explosion occurs within the rocket, breakingit into two fragments which separate from each other. One fragment,having 1/3 the mass of the rocket, falls straight down to Earthas if it were at rest at thatmoment right after the explosion.  Determine the totalhorizontal displacement from the launch point the other fragmentlands.  (The two fragments land simultaneously.)
