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 5.3
m waterfall. The spy’s speed is 16 m/s and
the officials’ speed is 26 m/s.
How far apart will the two vessels be when
they land below the waterfall?

how long does it take to fall 5.3m?

1.04 seconds

So, what is 1.04(26-16)?