Does Newton's Law of Gravitation Apply in Outer Space?

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SUMMARY

The discussion centers on Newton's Law of Gravitation, specifically the assertion that gravitational attraction occurs only within a limited "region of gravity" around a mass. Participants clarify that gravitational force, described by the equation F = Gm1m2/r^2, extends infinitely into space, affecting celestial bodies such as the Moon and planets. The consensus is that gravity does not vanish beyond a certain distance but rather diminishes with increasing separation between masses.

PREREQUISITES
  • Understanding of Newton's Law of Gravitation
  • Familiarity with gravitational force equation F = Gm1m2/r^2
  • Basic knowledge of celestial mechanics
  • Concept of gravitational fields and their properties
NEXT STEPS
  • Research the implications of gravitational force in astrophysics
  • Study the concept of gravitational fields and their behavior in space
  • Explore the differences between Newtonian gravity and General Relativity
  • Investigate the effects of distance on gravitational attraction
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Students of physics, astronomers, and anyone interested in understanding the fundamental principles of gravitational forces in the universe.

arunborah
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Hello

I studied about the Newton law of Gravitation which states that in universe every matter attract each other with a force which is denoted by F= Gm1m2/r^2. But in my view it is only happen within the region of gravity of a matter. but not in the space.

please can anybody help me in this regard?
 
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arunborah said:
But in my view it is only happen within the region of gravity of a matter. but not in the space.
What do you mean by "within the region of gravity of a matter"?

Gravity is what keeps the Moon in orbit about the Earth, the planets in orbit about the Sun, the stars in orbit about the galaxy, our galaxy bound to the local group. Gravitation extends into space.
 
arunborah said:
I studied about the Newton law of Gravitation which states that in universe every matter attract each other with a force which is denoted by F= Gm1m2/r^2.
OK.

But in my view it is only happen within the region of gravity of a matter. but not in the space.
What do you mean by that? Are you saying that two masses separated by space will not attract? What is the "region of gravity"?
 
arunborah said:
Hello

I studied about the Newton law of Gravitation which states that in universe every matter attract each other with a force which is denoted by F= Gm1m2/r^2. But in my view it is only happen within the region of gravity of a matter. but not in the space.

please can anybody help me in this regard?
Do you think gravity only acts within the atmosphere(region?) and not exceeds to space(which is what we call to place beyond the earth)?Do you think in terms of earth?
I think he is talking about this: As distance increase the gravity force decrease.
By that,do you think that the gravity force gets vanished beyond "The region"?
 
The Newtonian gravitational field ##F = -\frac{GM}{r^{2}}\hat{r}## extends out to infinity isotropically.
 

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