Lets suppose we have a close system.In this system we have a particles.The total mass of particles is M.(adsbygoogle = window.adsbygoogle || []).push({});

The total energy of system will be ##E_x+E_M=E_t## (I made the system like this) Here ##E_x## is just energy,its not important.##E_m## is the energy of masses.Now I want to move this system and I will gonna make ##E_x## zero.But for that as i said above I need to move the system.Then ##E_x=1/2Mv^2##.

Now the problem exist when we use ##E_x## so large.Then v must be so high.Then the problem becomes relativity problem.I used Newtonian equation but then I noticed that v is so high (of course less then c like 0.96c).Now what should I do ? Should I change my equation an write ##E_x=(γ-1)Mc^2## ? But I didnt know that v will be so high.Is that a mistake ? Or its not important cause v is small than c.

The other problem is the If I put this kinetic energy to the place of ##E_x## and then we will gonna have extra mass.This mass is this energy (movement energy) isnt it ?

I means the mass of object will be γM and the energy will be ##γMc^2## ##Mc^2+1/2Mv^2## (Which I asked before in detail)

Thank you

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# Closed system Energy transformation

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