According to the law of conservation of energy, the total energy of an isolated system is constant.

At any instant, the initial total energy is equal to the final total energy.

In this video, we use the law of conservation of energy. For the systems we consider what?

a.The initial potential energy of the system equals the final potential energy of the system.

b.The initial thermal energy of the system equals the final thermal energy of the system.

c.The initial total energy of the system equals the final total energy of the system.

d.The initial kinetic energy of the system equals the final kinetic energy of the system.