Can mechanical energy be conserved?

We could use a circular definition and say that a conservative force as a force which doesn't change the total mechanical energy, which is true, but ... the gravitational potential energy; when we add these up at the top and bottom they should be the same, because mechanical energy is being conserved. read more

Mechanical energy is conserved if the force acting on the particle or the system is conservative in nature (Potential Energy of a Particle | Work done by Conservative Forces #8) Law of conservation of energy says that the sum of potential energy (PE) and kinetic energy (KE) of a particle remains constant. read more

The total mechanical energy is said to be conserved. In this part of Lesson 2, we will further explore the quantitative relationship between work and mechanical energy in situations in which there are no external forces doing work. read more

Simple. A place where there are no causes of energy transformation. read more