Answer:
The potential energy at the top of the ball's flight is 13.88784 J. (round as you need)
Explanation:
So the equation for potential energy is PE=mgh. We do not have height (h). However, we do have mass and velocity, which can be used to calculate the ball's maximum kinetic energy (KE=1/2mv^2). Because energy cannot be created or destroyed, the ball's maximum kinetic energy is equal to the ball's maximum potential energy. At the top of the ball's flight, it will have maximum potential energy.
