Question

Gravitational force can't be repulsive why???​

Answer 1

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We all know that all the forces in nature exist in opposites, but gravitational force is the obly force which always attracts every object and never reples any. Let’s look at the formulas of gravitational force and electric charge:

Electric charge: Both the formulas appear to be similar but the electric charge force reples the charges if they are oppositely charged, but gravitational force attracts equally charged particles too.

So it can be assumed that all the particles existing on the earth are so negativiely charged when compared to gravitation force that, these particles are always attracted by the gravity.We all know that all the forces in nature exist in opposites, but gravitational force is the obly force which always attracts every object and never reples any.

Answer 2

Answer:

The reason is the Anthropic Principle. If there were a Universe in which gravitation would be repulsive, and we assume that that would be the only difference to the laws of physics to our Universe, then in that Universe there could be no star formation and therefore no heavy elements beyond Hydrogen and Helium could have been formed and therefore no intelligent life forms could have evolved to consciously ask themselves questions like this one. So the fact that we are here and discussing this question requires gravity to be attractive, it couldn't have been any other way. The idea of gravity being anything but attractive, to me is therefore quite repulsive.