# Can gravitation force change its direction

• parthivsmehta
In summary, the conversation discusses the potential consequences of gravity being reversed and whether objects would still remain intact. It is suggested that if gravity were reversed, objects would continue along their previous path but may potentially explode on a subatomic level due to the lack of gravitational force to hold them together. It is also debated whether gravity is the force responsible for holding atoms and molecules together at the scale of a comet.
parthivsmehta
force, can force change direction, if so can gravitation force change its direction,

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If all gravitational force effecting an object were reversed, it would do far more than just float up off the ground. It would smack into whatever building, tree whatever, rotating at it as the Earth spins toward it. Missing that, it would be left in it's position in space at the time when gravity abandoned it just waiting for some planet or star or whatever to crash into it and burn it up.

Actually, if the effect of gravity would suddenly be reversed the object in question would 'fall' upwards accelerating ca. 9.81 m/s^2. Although gravity would be reversed the inertia of the object would be left intact so the object would also keep moving along its previous path. This previous path is naturally the tangent of the curvature of Earth at the moment gravity was reversed. Knowing when gravity was reversed we could fairly easily calculate the speed (v = vx + vy + vz)of the object as a function of time.

Actually, thinking about it some more, with gravity reversed, the object would probably explode on a subatomic level (no gravity to hold itself together and anti gravity pushing it apart). Then all the pieces would continue seperating in their new inertial path (as Keni correctly pointed out).

Originally posted by Artman
Actually, thinking about it some more, with gravity reversed, the object would probably explode on a subatomic level (no gravity to hold itself together and anti gravity pushing it apart). Then all the pieces would continue seperating in their new inertial path (as Keni correctly pointed out).

Does a comet come apart in deep space? No. So why would anything else? Gravity doesn't 'hold' an atom together, the strong force and electromagnetic force do. Matter just reacts to gravity. So if gravity reversed, we'd all just float off the planet.

We don't know what the consequences would be for gravity being reversed. Objects are attracted to one another, not just to larger objects. Your comet has gravity even in deep space. Gravity is a weak force, but it seems to exist between all pieces of matter.

What does being in "deep space" have to do with a comet holding together? A comet holds together because of the gravitational attraction of each part of it for the others. It is more likely to be disrupted when it is in "near space"- near to the sun or a large planet.

I agree that it is primarily strong and weak forces that hold nuclei together- and the electromagnetic force that holds atoms and molecules together. However at the scale of a "comet", it is gravity that is important.

What I am thinking is that if gravitation is reversed, all of the forces acting on the matter would be disrupted. What would happen if just one object ran counter to the laws of physics?

## 1. Can gravitation force change its direction?

Yes, gravitation force can change its direction. It is a vector force, which means it has both magnitude and direction. The direction of gravitational force depends on the relative positions and masses of the objects involved.

## 2. Can the direction of gravitation force be reversed?

Yes, the direction of gravitation force can be reversed. This can happen when the relative positions of the objects involved change, such as when they move closer or farther away from each other.

## 3. Can gravitation force act in multiple directions at once?

No, gravitation force can only act in one direction at a time. It is always directed towards the center of mass of the objects involved.

## 4. Can an object change the direction of gravitation force acting on it?

No, an object cannot change the direction of gravitation force acting on it. The direction of gravitational force is determined by the positions and masses of the objects involved, not by the objects themselves.

## 5. Can the direction of gravitation force be manipulated or controlled?

No, the direction of gravitation force cannot be manipulated or controlled. It is a fundamental force of nature and its direction is determined by the laws of physics.

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