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what factors would increase or decrease inertia, i.e. require more or less energy to change the velocity of matter from what is currently required all else being equal?

I have heard of mach's principle but that seems to not be accepted. What other explanations are there that are more accepted as correct for this?

michael
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  • Inertia simply means that you need to add energy to get a body moving. What is your specific problem in understanding this fact? – safesphere Nov 28 '17 at 09:34
  • @safesphere is the question clearer to you now? thnx – michael Nov 28 '17 at 11:32
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    Yes, it is more clear now. The answer is energy. Inertia is a measure of the total energy of a body (per $E=mc^2$). The more energy a body has, the more energy you need to add to get it moving faster (inertia). – safesphere Nov 28 '17 at 11:44
  • @safesphere do you know of a source i can study this relationship further? thanks. – michael Nov 28 '17 at 11:46
  • I'd suggest searching the web for "inertia of energy" to find a source that works best for you. – safesphere Nov 28 '17 at 12:11
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    @safesphere is not it that you exchange one question with the other? "what factors would increase or decrease inertia?" after your explanation becomes "what factors would increase or decrease energy?" – physicopath Nov 28 '17 at 12:16
  • @physicopath The factors that would increase or decrease energy are adding or removing some energy. – safesphere Nov 28 '17 at 12:23

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If you draw a sphere in the 3D Euclid's space you have to do something to change the location. You have to delete it and draw a new one because the Euclid's space does not allow moving points. If you draw a space-time curve in space-time continuum, you must force the force to move it to a new location. However, my answer is a bum because I am not a scientist and do not tell anyone that I told you.

FPosta
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