Final answer:
The potential energy of the arrow decreases while its kinetic energy increases as it moves towards the target on the high wall.
Step-by-step explanation:
The moment the arrow is fired, it possesses both potential energy and kinetic energy. Potential energy is the energy an object has due to its position or condition, while kinetic energy is the energy of an object in motion.
As the arrow flies towards the target on the high wall, its potential energy decreases because it is moving away from its initial position. At the same time, the kinetic energy increases as the arrow gains speed. When the arrow hits the target, all of its potential energy is converted into kinetic energy.
Learn more about Energy change of an arrow in flight