Question

Which one of the following bodies has only potential energy?

a. A cat sitting on the fence
b. A stone falling from a cliff
c. A ball rolling downhill
d. A dog running after a car

Answer 1

Potential energy is like energy contained. It is not energy displayed.

So option (a) clearly represents energy contained.

a. A cat sitting on the fence

If the cat jumps off the wall, the potential or contained energy is displayed as kinetic energy; which is energy in motion.