It's impossible, but if the earth stopped turning abruptly, all things that are in proximity to the Equator would describe a straight motion in tangential directions to the Earth's surface, with speeds of up to 1600 km/h. Although very large, this speed would not be enough to launch us into space, since the escape velocity, that is, the lowest speed that a body must be launched in order to leave Earth's orbit is 40,320 km/h.
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What if the Earth stopped rotating?
In the extreme case where the Earth had its rotation movement interrupted, the atmosphere would continue to rotate and this would produce enormous speed winds, bigger than any others that could be registered here. In addition, the tectonic plates, which float over the magma, would continue to rotate and, upon colliding against each other, would produce planetary scale earthquakes.
With the loss of rotational speed, the water of the seas would return to the poles. It works like a spinning water bucket: if it stops spinning, the water inside it will fall. THE
inertia of water is what keeps it in the Ecuador region, so, in this situation, some seas and oceans would become great deserts, while the countries located above the tropics would be almost completely submerged, giving existence to two great oceans to the south and north of the globe. terrestrial.After a few hours, if someone survived, they would not notice the distinction of days and nights the way we know it. In theory, we would live half the year in complete darkness and the other half in a scorching day. At that time, most living beings that were in the dark hemisphere of the Earth would be taken by a harsh winter and completely dark, while the light side would reach temperatures very high.
If the Earth's core stopped rotating, the dynamo effect, responsible for producing the Earth's magnetic field, would end, as well as the Earth's magnetic field itself. As a result, the solar wind would not be deflected and would hit the lighted face of the Earth, little by little, sweeping away the particles of our atmosphere. Within a few thousand years, Earth would have lost much of its atmosphere, allowing a great deal of ultraviolet and gamma radiation to reach the surface.
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What if the Earth stopped translating?
The Earth orbits the Sun over the course of a year, performing a elliptical orbit. This implies that everything on its surface moves along with it at a speed greater than 107,000 km/h. If the Earth simply stopped revolving around the Sun, abruptly, all of its energykinetics it would be transformed into other forms of energy, such as thermal energy, sound waves, etc.
The deceleration needed for the Earth to come to an abrupt stop, in less than 1 second, would be large enough to deform it completely, stretching it in the direction of its movement because of its enormous inertia. Nothing could survive such a catastrophe, at 107,000 km/h everything on the Earth's surface would have enough speed to be ejected into space, including the seas, plate tectonics and possibly the Earth's own core.
In a less chaotic setting, in which the Earth slowly lost its orbital speed, the consequences would be less unpleasant and less lethal, at least in the first moments. With the disappearance of its rotational movement around the Sun, the Earth would be continuously drawn in a straight line towards the Sun, about 65 days it would collide with its surface. Obviously, long before that, we would be literally boiled due to the enormous temperature in the vicinity of the solar atmosphere.
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What would happen if the Moon moved away?
THE Moon moves away from Earth at a rate of 3.78 cm per year. When it moves away from us, a physical principle called conservation of angular momentum ensures that the Earth's rotational speed continually decreases. Some modern simulations indicate that at the time of its formation, the Moon was about 22,500 km away from the Moon. Earth and, therefore, the days around here lasted about 5 hours, that is, the Earth rotated much faster than in the days current.
The moon moves away from Earth at 3.78 cm per year.
It is estimated that the current speed of departure of the Moon from Earth's orbit would become unstable, but only from here a few billion years, moreover, the length of the day would be longer, growing at a rate of 19 h every 4.5 billion of years old.
Due to the increase in the length of the day, part of the Earth would spend a great part of the time illuminated by sunlight, while on its other side there would be no sunlight, this would affect the global climate, greatly increasing the Earth's thermal range.
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What makes the Earth rotate?
During the formation of the solar system, the young planets faced difficult times. During practically all the time, they suffered violent collisions with asteroids, which possibly gave rise to the existing moons in the solar system. At that time, a large object similar in size to the planet Mars is believed to have collided with the Earth, giving rise to what would become our Moon.
A large object similar in size to that of Mars collided with the Earth, giving rise to the Moon.
The formation of the Moon caused the Earth's rotation speed to increase greatly, however, the very gravitational attraction between Earth and Moon caused our planet to have its rotation frequency decreased over billions of years. What has kept the Earth spinning ever since is the fact that there are no dissipative and intense forces on the enough to stop the Earth's rotation, so the phenomenon we call conservation of the angular momentum.
O timeangular is the amount of motion related to rotating bodies, in the absence of external forces, the amount of total angular momentum cannot be changed, so the amount of rotational motion from the Earth was transferred to the Moon and other bodies in the solar system, but not significantly enough to make it stop for complete.
By Me. Rafael Helerbrock
Source: Brazil School - https://brasilescola.uol.com.br/curiosidades/o-que-aconteceria-se-terra-parasse-girar.htm
