How the attraction of the earth is formed

First of all, the earth has mass, and the greater the mass, the greater the gravitational pull on other objects of the same mass, and the earth has a large mass, so the earth's attraction is formed by a huge mass.

As for why mass can produce gravitational force? That's the deeper question.

Just as in ancient times we didn't know gravity, maybe we will know why later, but if we know this why, there will be a deeper question, so we can only go deeper, but we can't get the final answer.

At present, the more cutting-edge explanation should be the explanation in Einstein's theory of relativity, the curvature of space-time caused by mass, the larger the three-dimensional spatial scale, the time can be perceived relative to the moon, the farther it deviates from the neutrality of Taiji chaos (nothing exists), the greater the tendency of its return, even if it is attracted by the sensory response of our life forms, just as the working principle of centrifugal pumps is not to suction but to test atmospheric pressure, as people's horizons expand, the essence of the earth's attraction will now slowly approach the truth.

According to Newton's gravitational force, the earth also has a gravitational pull, and the greater the mass, the greater the gravitational force.

Therefore, because the mass of the earth is larger, a larger gravitational force is formed.

Space-time distortions due to massive masses.

This is a problem that even Hawking can't do. You'd better wait a few decades or a few hundred years before asking.

There is between matter and matter. Each object attracts other objects, and the magnitude of this gravitational pull is only related to the mass of the object and the distance between the objects. Newton's law of gravitation states that each object attracts every other object, and that the gravitational force between two objects, proportional to their mass, decreases with the square of the distance between the two objects from the center line.

Newton developed calculus in order to prove that only a spherical body can concentrate the total mass of the ball to the center of mass of the ball to represent the total effect of the gravitational effect of the entire sphere. However, no matter how far away you are from Earth, Earth's gravity will never become zero, and even if you are brought to the edge of the universe, Earth's gravity will still act on you, and although the action of Earth's gravity may be obscured by massive objects near you, it is still there. No matter how small or far away, every object is subject to gravity and is spread throughout space, as we say in everything .

Both the earth and people are material, so both have beneficial effects.

So the earth is attractive.

Very good. We didn't learn.

When a falling object is only subjected to gravity.

Can machinery be conserved.

In fact, it is the conservation of energy in the system composed of objects and the earth.

If the object is not attractive to the earth.

So is it still conserved.