WE+WF=ΔK+ΔU
Here,
WE=0
WF=0
Hence, for
If you need more information, then see the link below.
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There is no conservation of mechanical energy. Only total energy is conserved,
but energy may be freely converted between mechanical and other forms.
The equation is:
(Total energy of all kinds in an isolated system at a later time)
is equal to
(total energy of all kinds in the system at an earlier time, regardless of what happened during that time).
The law is that total energy is conserved. There's no guarantee
that mechanical energy is conserved. In fact, it seldom is.
The energy conservation law is expressed in this equation:
Efinal = Einitial1/2g+1/2kxf=0
The law of conservation of energy states that the total energy in the universe is a constant and will remain so for example ( x=y+z ). conservation of energy has to do with reducing the amount of energy used through reduced activity and/or increased efficiency in the performance of a particular task.
This simply means that, as long as no mechanical energy is wasted or converted to other types of energy (and no other type of energy to mechanical energy), the total amount of mechanical energy doesn't change. Mechanical energy refers to the sum of kinetic and potential energy. Since energy losses and energy conversions do occur, this is not really a "law". In other words, the law of conservation of energy has not been known to be violated; conservation of mechanical energy is very easily violated.
Energy
There is no difference between the two, it's just another way of wording the phrase.
Conservation of mechanical energy means that the total mechanical energy doesn't increase or decrease over time.Note that in real systems, some mechanical will always be lost due to friction.
The law of conservation of energy states that all energy in the universe is conserved. It can not be created nor destroyed, but it can be interchanged between mechanical and non-mechanical energy.
rubbing of two wood
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Mechanical Energy
It certainly does; mechanical energy will be wasted due to friction. Otherwise, if you disregard friction, the fact that the total mechanical energy is conserved follows from conservation of energy.
•The conservation of mechanical energy is a principle which states that under certain conditions, the total mechanical energy of a system is constant. This rule does not hold when mechanical energy is converted to other forms, such as chemical, nuclear, or electromagnetic.