Answer:
Explanation:
As the boy is riding from top to bottom of the hill his Potential energy gradually decreasing and simultaneously converting into the Kinetic energy.
At the top, his Potential Energy is maximum and kinetic energy is minimum i.e. zero
In the middle of the hill, he possesses both Potential and kinetic energy with equal magnitude.
At the bottom whole Potential energy is converted into Kinetic energy.
Thus Potential Energy is maximum at the top while Kinetic energy is maximum at the bottom.