Question about gravitational attraction

AI Thread Summary
The discussion centers on the gravitational attraction formula F=Gm1m2/r^2 and whether one mass can be substituted with an energy value using E=mc^2. It is noted that this substitution is possible only if the energy is confined. The conversation highlights that gravity, according to Einstein's theory, is not merely an attraction but a distortion in spacetime, differing from Newton's perspective. Participants encourage further exploration of general relativity for a deeper understanding of gravity. The thread reflects a shared enthusiasm for self-study in physics among participants.
RandomDude
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So the formula is F=Gm1m2/r^2. Could you substitute one of the mass values for an energy value since gravity attracts energy ? Or would this require a different equation?
 
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Using E=mc^2?

Yes, you could do that ... but only if the energy was confined somehow.

A full treatment requires general relativity.
 
Welcome to PF RandomDude :redface:

Simply, gravity "attracts" mass in Einstein's theory and not in Newton's which the equation is from :smile:. There gravity isn't an "attraction" like in Newton's theory. Is is a distortion in spacetime where the mass will follow the distortion. Continue your search about gravity and try reading more about General relativity and space! Have fun!.

Watch this video . Hopefully, it will set you on the right track. (note the video is not the actual representation of gravity in Einstein's theory but it makes it easier for you to visualize it)

Note: My post might have some errors and wrong physics/terminology, so I will leave it for the experienced to correct me :smile:
 
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Thanks for helping me wrap my mind around that, I've never actually been in a physics classroom yet. I self study for now.
 
Don't worry :smile:

I have never been in a physics classroom. And now I am continuing to my second year undergrad in physics! You are curious and that what matters !:thumbs:
 
Medicine and Physics are definitely the two things I'm interested in right now.
Yeah I asked myself why things happen and I indulged into physics.
 
You've got medicine physics :-p
 

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