A swimmer runs horizontally off a diving board with a speed of 3.32 m/s and hits the

Question:

A swimmer runs horizontally off a diving board with a speed of 3.32 m/s and hits the water a horizontal distance of 1.78 m from the end of the board.
(a) How high above the water was the diving board?
(b) If the swimmer runs off the board with a reduced speed, does it take more, less, or the same time to reach the water?