Dear sir, its urgent please give me proper explanation as soon as possible.. and please write neat and clean.. if your writning or solution is not good then i will give you negative rating

3. Imagine you are using PhET simulation to design a track for a skateboarder. Initially, you would like the skateboarder (65 kg) to start from rest at the top of a hill that is 25.0 m high. If the skateboarder enters a loop and reaches a speed of 12.5 m/s at the top of the loop, determine the height of this loop. Show all your work clearly. (1: 2, A: 2, C: 1 1/2 ) 25 m