# Can gravitational force have influence on objects at infinitely long distances?

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• shivakumar

#### shivakumar

Can gravitational force have influence at objects at infinitely long distance? Is gravitational force in the form quantum packets?

Classical models say yes, the reach is infinite. We don't have a working theory of quantum gravity so we don't know what that says. We do expect gravity to be quantised, we just don't know how it works.

• vanhees71
shivakumar said:
Can gravitational force have influence at objects at infinitely long distance? Is gravitational force in the form quantum packets?
Newton's law of gravity is ##F = \frac{GMm}{r^2}##. There is no limit on the size of ##r##.

Likewise if you look at, for example, the Schwarzschild metric in general relativity. There is no limit to the ##r## coordinate.

• vanhees71
shivakumar said:
Can gravitational force have influence at objects at infinitely long distance?
Since gravity propagates at the speed of light, an infinitely long distance will take an infinitely long time. The original cause will be gone, long before the infinitesimal effect begins to be felt at an infinite distance.

• vanhees71, FactChecker and phinds

## 1. Can gravitational force act on objects that are infinitely far away?

Yes, gravitational force is an attractive force that acts between any two objects with mass, regardless of their distance. However, the strength of the force decreases as the distance between the objects increases.

## 2. How does the strength of gravitational force change as the distance between objects increases?

The strength of gravitational force decreases as the distance between objects increases. This is described by the inverse-square law, which states that the force is inversely proportional to the square of the distance between the objects.

## 3. Can the gravitational force between two objects be completely eliminated?

No, the gravitational force between two objects cannot be completely eliminated. It is a fundamental force of nature and is always present between any two objects with mass, regardless of their distance or size.

## 4. Can gravitational force act on objects that are not in direct contact?

Yes, gravitational force can act on objects that are not in direct contact. This is because the force is a result of the mass of the objects and their distance from each other, not their physical contact.

## 5. Is there a limit to the distance at which gravitational force can act?

There is no known limit to the distance at which gravitational force can act. It is believed to have an infinite range, meaning it can act on objects at any distance, no matter how far apart they are.