Question

If energy is neither created nor destroyed, what happens to the so much enery spent against friction?

Answer 1

Answer:

The first law of thermodynamics, also known as Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another. ... In other words, energy cannot be created or destroyed.

Explanation:

Energy is 'lost' or not used effectively when frictional forces occur. For example, when a bike applies its brakes and slows down the kinetic energy of the bike is transformed into heat energy in the brakes. This is called the Work Done against Friction ( ..