Physics: Find Delta Y using Kenetic and Potential Energy

Because of the number of views on the Chapter five homework, especially problem number 12, I decided to rework 12 in a new video. I have found a faster (and more correct way of solving the problem)

12. A daredevil on a motorcycle leaves the end of a ramp with a speed of 28.0 m/s as in the figure below. If his speed is 26.4 m/s when he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance.
________m

Here is the initial video that I posted. It provides a way of finding the correct solution, but it is not the best or fastest way





Here is the video that shows how to solve using Kenetic Energy and Potential Energy and the law of conservation of energy. Much easier and faster