A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials' boat pulls up next to the spy's boat, both boats reach the edge of a 4.5m waterfall. The spy's speed is 16m/s and the official's speed is 24m/s. How far apart will the two vessels be when they land below the waterfall? The acceleration of gravity is 9.8m/s^2. Answer in units of m.