how fast is the earth spinning and if its spinning really fast why dont we feel it moving?

Question

and why arent we feeling sick and dizzy and keep falling over being drunk doesnt count

Answer 1

The laws of physics are exactly the same for any frames of reference moving with constant velocity (speed and direction) relative to one another.( Inside a sealed vehicle travelling at uniform velocity, it would be impossible to discern any effects of your motion- eg falling objects or projectiles would behave in a manner identical to being at rest). Although the earth's speed at the equator is about 460m/s, it's angular velocity and hence its centripetal acceleration is very small compared with the gravitational field strength. (centripetal a=0.034ms^-2, g=9.81ms^-2 or N/Kg)-about 1/3 of a percent. You would weigh about 0.3 percent less at the equator due to this effect as this is the contribution from your weight needed to balance the centripetal force. I do not think this is sensible to any of our bio-functions.

Answer 2

as many people have said, 1000mph and we dont feel it because of the scale of the earth and its relative 'slowness' the speed varies. at the equator it moves a lot faster and the poles a lot slower however it would still take you 24 hours to fully revolve at any point.

an additional couple of points that no one else seems to have picked up on are 1) the moon. the moons gravitational pull on the aerth actually keeps us rotating at a steady rate in a continual orbit. without it we would spin all over and not have the regulated daylight hours or seasons we have now. additionally the moon is moving away from us at quite a rate. soon (in terms of the universe) it will loose its pull with us and orbit the sun independantly. still we have a long time before that will happen! a few hundred thousand years or so!
2) the spin of the earth contributes much to us that we are not always aware of. it causes weather systems like hurricanes amongst other things.

Answer 3

The earth is roughly 24,000 miles in diameter and it takes 24 hours for 1 complete spin so 24,000/24=1,000mph. The reason we don't feel the motion is due to inertia, for example, when you are in a bus if you throw a ball up it lands back in your hand but in the seconds it takes to do this the bus has moved several metres. This is also due to the inertia the ball has from the buses movement, making the ball travel the distance with you. So if for some srange reason the earth stopped spinning suddenly we would all fly into the air at 1,000mph in an inclined angle, sounds fun doesn't it.

Answer 4

The Earth spins once every 24 hours (approximately). That's what creates day and night. The reason the spinning doesn't affect your inner ear (which is responsible for dizziness) is that it's so slow.

If you were spinning 3 times every second, however, your inner ear would be substantially affected, and you would become dizzy.

Answer 5

Because it's spinning fast enough to keep up pushed onto the surface of the earth. Plus! The earth is so big that we don't feel it moving.

Answer 6

At the equator, the Earth is spinning at 1000 miles per hour about its axis and moving at 67,000 miles per hour around the Sun. We don't feel anything because all of the motions are almost completely constant.

Answer 7

It spins round on its axis roughly once every 24 hours. If you know what the circumference of the earth is, you can work out the speed of an object on the equator and everything else from thereon in.

Answer 8

about 1000 mph

We don't feel anything because the earth is gigantic compared to our size. So if it spins really fast, we can't feel it because it needs to turn a much greater mass than we do...

Besides... using just practical logic... we haven't ever experienced life without it, so there can be no comparison...

Answer 9

We don't feel the velocity for two reasons:

1. We are part of the earth and are moving with it.

2. The earth's atmosphere also rotates with the earth.

Answer 10

Have you ever been on that fairground ride thats like a big wheel like a biscuit tin, and as it gets fast and higher you dont fall off because you get stuck to the rim of it?

Thats what the earth is like, it goes so fast that we are pulled towards it and never fall off, we never notice the pull because we've never experienced life without it