Kinetic energy is a kind of energy that is possessed by a body because of its motion, but on the other hand, potential energy is the stored energy of an object due to its position and properties.
As kinetic energy can be converted into some other form like light, sound, or heat energy upon collision of the objects, it cannot exceed the potential energy of a body.
The law of conservation of energy states that the energy of the body remains constant in a closed system in the absence of external forces, which means if kinetic energy were greater than potential energy, it would violate the law of conservation of energy.
Kinetic energy and potential energy are interconnected; if there is an increase in kinetic energy, then it must be balanced by a decrease in potential energy.