Olympic diver Matthew Mitcham springs upward from a diving board that is 3.20 m above the water. He enters the water at a 75.0 degree angle with...

Olympic diver Matthew Mitcham springs upward from a diving board that is 3.20 m above the water. He enters the water at a 75.0 degree angle with respect to the water surface, at a speed of 9.24 m/s. Determine the magnitude of his initial velocity