You can estimate the speed of collision with water in swimming jumps with the formula [[$ {speed} ≈ 4,5\cdot\sqrt{fall distance} $]], where the unit of speed is m/s and the fall distance is marked in meters. Calculate the collision speeds when jumping from a height of

a) [[$ 3 $]] meters.



Answer: The collision speed is m/s.

b) [[$ 5 $]] meters.



Answer: The collision speed is m/s.

c) [[$ 10 $]] meters.



Answer: The collision speed is m/s.