Question

In the absence of air resistance, a falling rock gains kinetic energy and loses potential energy, while the total energy of the rock remains constant. In the presence of air resistance, however, the rock eventually reaches terminal velocity. Now the kinetic energy is constant, but the potential energy continues to decrease as the rock falls toward the ground. Why is some energy missing?

Answer 1

Total energy of a system always remains constant

Step-by-step explanation:

In this particular case a work against air resistance have to be done, and this is equal of the decrease in potencial energy.

The principle of energy conservation sates that energy is not created or lost

but is transformed