Ball A was carried to the top of a hill in a straight line, while ball B was carried in a longer, zigzag path. At the top of the hill, both balls were left at rest. A student draws a graph that depicts each ball's final potential energy. Which statement describes the final potential energy of the balls?
a Ball A has more potential energy.
b Ball B has more potential energy.
c Both balls have equal potential energy.
d Neither ball has any potential energy.
The answer is:
c) Both balls have equal potential energy.