A stone fell from the top of a cliff into the ocean.
In the air, it had an average speed of 16 \text{m/s}m/sstart text, m, slash, s, end text. In the water, it had an average speed of 3 \text{m/s}m/sstart text, m, slash, s, end text before hitting the seabed. The total distance from the top of the cliff to the seabed is 127meters, and the stone's entire fall took 12 seconds.
How long did the stone fall in the air and how long did it fall in the water?