Why can t the moon fall? Why the moon doesn t fall The reason why the moon doesn t fall

Let me tell you about an example of centripetal force that Newton imagined at the time. At the time, he thought that a person throws a stone horizontally, and the stone will fall to the ground due to the gravitational pull of the earth; If the force of the stone is greater, that is, the initial velocity of the stone is greater, and it will fall farther away; Suppose that if the force is large enough and the initial velocity is large enough that everyone knows that the earth is round, then the stone will keep falling "down" around the earth and will not fall to the ground.

This initial velocity is the "first cosmic velocity", and if you don't want an object to fall to the ground on the surface of the earth, then its velocity must be at least this velocity, and the magnitude is. Of course, if the speed is a little larger, it will fly out a little bit, but it will still move around the ground, and "fly out a little bit and still move around the ground" means that the radius of its orbit around the ground increases. And the gravitational force of this earth on it is the centripetal force, the centripetal force, as the name suggests, is the force that points to the center, which is given to it by the earth.

There is a gravitational force between all objects in nature, and this force is determined by the mass and distance of the two objects. Thus, the earth has a force effect on the moon. But the moon moves at high speed, and this force acts as a centripetal force, making the moon move in a circular motion without falling.

Although it looks like the moon hangs in the sky, it actually exists in the universe. The Earth's gravitational pull is not strong enough to suck the moon over, so it can't fall.

What you say falls down. What will make you see him fall? It's because of the gravitational pull of the earth.

Earth's gravitational pull is not strong enough to pull the Moon over. So you won't see him fall. If you're making the gravitational pull of the Earth triple greater.

The moon will go down. In the future, there will be everyone. Phew.

The wind blows away

Not only can it not fall, but it also can't fly away, according to the information I read, the formation of the moon is still a mystery, one is that the moon is always facing the earth, we can never see its back, and the other is how did the moon come about? If it is captured, then is it really such a coincidence, is the position of the moon just in the middle of gravity? If it is said that it is a brother of the earth, then the material composition on the moon is not found on the earth.

This is the result of the combined action of the gravitational centripetal force in the universe! It's like why doesn't the sun fall from the earth!

Not only does it not fall.

Rather, in the principle of the earth.

Because of the expansion of the universe, the spectrum of the moon is blueshifting, that is, it is getting farther and farther away from the earth.

Because Chang'e knows that it is interesting to you, and she is embarrassed to come down.

There are many people below, and the moon is shy and does not fall.

If you ask the moon, I would like to know that too

1. The Moon and the Earth are two planets, both in motion.

2. In addition to the gravitational pull of the earth on the moon, there is also the existence of repulsive force.

3. In addition to the interaction between the earth and the moon, there are also the forces of the sun and other stars and planets.

4. Because the moon is very high outside the atmosphere, there is no air at all, there is no collision and friction, so the speed of the moon's orbit around the earth will not slow down, and it will not fall.

The reason why the moon does not fall is because the moon and the earth have a common center of gravity, and the moon is a satellite of the earth, the earth and the moon revolve around each other, and the two celestial bodies rotate around the common center of gravity at 1,600 kilometers below the earth's surface, so the moon does not fall.

Since the early days of the Moon's formation, the Earth has been subjected to a moment that slows its rotation, a process known as tidal locking. As a result, part of the angular momentum of the Earth's rotation is converted into the angular momentum of the Moon's orbit around the Earth, with the result that the Moon moves away from the Earth at a rate of about 38 millimeters per year. The Moon is about a quarter of the diameter of the Earth and about one-eighty-one times the mass of the Earth.

The Moon is the most massive moon known to Earth, and its surface is covered with craters formed by the impact of small celestial bodies. The average distance between the Moon and the Earth is about 10,000 kilometers, about 30 times the diameter of the Earth.

Hello, dear, thank you for your patience, the moon does not fall because it is in the gravitational field of the earth, and it is kept in orbit by the gravitational pull of the earth. At the same time, the Moon also exerts a gravitational pull on the Earth, and the Earth also orbits around the Sun along its orbit, forming a stable state of motion. According to Newton's law of gravitation, the gravitational force between two objects is directly proportional to their mass and inversely proportional to the square of the distance between them.

Both the Moon and the Earth are very massive, so the gravitational pull between them is very strong. At the same time, the distance between the Moon and the Earth is also very long, which makes the gravitational pull between them enough to keep the lunar imitation ball in orbit without falling. In short, the Moon does not fall because the gravitational pull between it and the Earth remains in balance, forming a stable orbital motion.

Hello, the stars are quite far away from the earth, they all have their own positions, so they do not fall to the ground. In addition to the stars, there are planets in the sky, which are much smaller than the stars and do not emit light, they all revolve around their own "sun" like the earth. They also have their own orbits, and they do not collide with each other and do not fall to the earth.

The moon is a satellite of the Earth, and it also has its own orbit and is flying around the Earth at high speed, forming a state of equilibrium with the gravitational pull between the Earth, so it will not fall.