Why earth is not moving out from its orbit?

Answer 1

The reason we don't feel the earth spin is because you can only experience spinning at a constant velocity as the centrifugal force, and on the surface of Earth, the centrifugal force is very weak compared to gravity. Gravity is pushing us down toward the center of the earth at roughly 9.8 m/s^2. If you are standing on the equator you have a centripetal acceleration of roughly 0.034 m/s^2, causing a centrifugal force of of your mass times the centripetal acceleration.

So you're constantly being pushed down at roughly 9.8 m/s^s and constantly being pushed up at roughly 0.034 m/s^2. Like all bodies under multiple forces, you only experience the NET force, which is pushing you down. That's why you don't feel the earth spinning.

Answer 2

The Earth stays in its orbit around the Sun because of a balance between two key forces: gravity and inertia.

First, there's gravity. The Sun's massive gravitational pull is constantly trying to draw the Earth closer to it.

Then, there's inertia. As Earth moves through space, it tends to keep moving in a straight line because of its inertia, which is the tendency of objects to resist changes in their motion.

These two forces work together. While gravity pulls Earth toward the Sun, Earth's forward motion keeps it from falling into the Sun. Instead, Earth travels in a stable, elliptical orbit, maintaining a steady distance from the Sun. This balance between being pulled inward by gravity and moving forward because of inertia is what keeps the Earth from drifting off into space into the Sun.

Answer 3

Earth stays in orbit around the sun due to the gravitational pull between the two. The gravitational force from the sun keeps Earth in a stable orbit. If Earth were to suddenly move away from its orbit, the sun's gravitational force would bring it back into the correct path.

Answer 4

Answer 2: The earth rotates at an extremely slow rate for it's mass. It's like you spinning around 1mm every 10mins.

Answer 1:It seems like the earth is standing still because you are moving right along with it.

Answer 5

Movement can only be defined in relation to some object. We might say that the Earth is standing still, or that it moves in relation to the Sun, or to the galaxy - but it doesn't make sense to ask about its "real" movement. Any movement we feel when we are on the road, for example, is because the car (for example) will bump up and down. In outer space, there are no such bumps.

Answer 6

No-one knows why. 'Why?' is not a question addressed by science. We observe natural

things and explain them as best we can, so we have Newton's laws of motion and law

of gravity, Kepler's laws of planetary motion, and a whole lot more like Laplace's detailed

work on planetary orbits, but no-one asks why it happens. It's just there.

==============================

A suggestion:

As the solar system formed, there were objects and material in the space around

the sun with a large range of energies, moving in paths of many different shapes.

The objects and material with enough energy to escape the sun did so, sailing off

into space never to be seen or heard from again.

Those either with sun-grazing orbits, or with insufficient energy to maintain any orbit,

soon fell into the sun, and were likewise never seen or heard from again.

What we see now, after several billion years of solar system formation, selection,

evolution, and refinement, is the collection that remains. Earth is one of those objects.

Answer 7

The Earth's orbit is changing by a tiny fraction of a second per year, but for normal discussion we can assume that the Earth's orbit is fixed.

The reason that the Earth's orbit is stable and unchanging (almost) is that there is no outside force being applied to it, other than possibly the stream of incredibly small particles that are pushed out by the Sun in all directions. (The Solar wind). Many of these particles ( neutrinos) pass right through the Earth (And you and me), and apply no force against the Earth, at all.

Earth occasionally passes through a collection of fine gravelly particles that we call meteors. These particles have a tiny, tiny effect on the Earth's speed relative to our Solar system, but do contribute to slowing the Earth's forward motion enough to make its orbit larger by a tiny, tiny fraction of an inch each year.

(Larger is correct, even though it does not sound 'right'))

Answer 8

Although it is obvious from the motion of the Sun and stars that the Earth is rapidly rotating from west to east, you as an observer here on Earth cannot detect the motion because you are a part of the rotating system (the Earth and the air around it).

Another example is flight in an aircraft. Once the airplane stops accelerating, the passengers have no direct way to tell the speed at which they are moving. The speed could be 100 miles an hour, or 600 miles an hour, or 1200 miles an hour. The interior seats and air are unaffected by the forward motion of the plane. All of the atmospheric drag takes place on the exterior.

----

This is best explained using the Special Theory of relativity.

The principle of relativity states that all measurements depend on the relative motions of the observer and the observed. The Special Theory of Relativity applies the principle of relativity only to systems in uniform motion relative to each other. Therefore is this case the Earth and you, whereby the Earth is the observed and the observer is you.

Since you (the observer) are located on Earth and that moving along with Earth in uniform motion, you cannot tell whether you are moving or not unless you look outside of the system. If you introduced an outside system as a stationary reference, for example the Sun, you would observe that you moved or the Earth moved (rotated) basing on the position of the Sun from your point of observation.

Answer 9

For the same reason that you can't feel a car moving when you're riding inside of it, you're moving with it. When you're cruising down the highway at 60 mph, the reason that you can't feel the car moving is that you, the air around you, and everything touching you (unless you have the window open) is also moving at 60 mph, thus there is no relative speed between you and the car. This is the same phenomenon that occurs with the Earth's motion. While the Earth spins on its axis once every 24 hours and zooms 54,343,269,720,000,000 miles around the sun every year, you, the atmosphere, and everything else on Earth is doing the same thing. Because there is no difference in your speeds, you will perceive that the Earth is not moving. If the Earth were to suddenly stop, however, you would go flying off of its surface because you would then be traveling much faster than the stationary Earth.

Answer 10

A number of answers miss the point of your question, or are a little incorrect.

The earth is not rotating "slowly". A point on the equator is moving around the centre over 1600 km/hr. But we don't feel speed, we feel change in speed.

It is true that we can see the sun moving across the sky, but for thousands of years people felt that it WAS the sun moving, not the earth rotating.

So let's consider your question carefully. It turns out that we CAN feel and see the earth's rotation if we look and measure carefully. Here are there ways:

1. We can dangle a pendulum over the north pole. As the earth rotates from west to east, it looks to us as if the pendulum's plane of swing roates from east to west. I know that's kind of like watching the sun go around, too. But the pendulum is right here, in our hands, and we can't see any reason the pendulum would be doing that. But if the Earth rotates, well, that explains it.

2. The rotation of the Earth makes things near the equator seem to weigh a little less than they should, even accounting for the fact that the ground at the equator is a little farther from the centre of the earth than the pole.

AND, that gives us another bit of visual evidence:

3. It's the earth's rotation that makes the equatorial bulge in the first place. To see the effect yourself on a much larger scale, look at a photo of the planet Jupiter. It's WAY larger across its equator than from pole to pole because of its faster rotation.