At what speed does a point on the earth's surface travel at, as the earth revolves ?
964882
It depends where on Earth you are.\nAt the North Pole, you're not moving at all (at least in this frame of reference - you're still moving with the Earth round the Sun, with the Sun round the Milky Way, and so on), just spinning on your axis.\n\nAt the Equator, you travel the circumference of the Earth, approximately 40,075km, in 23 hours 56 minutes (a siderial day), giving you a speed of 1674 km/h or 1,040 mph.\n\nAt other points, your speed will be somewhere in between.
675938
The speed that the reflection is moving at is near light speed (186,000 miles a second). The spot we see the reflected light coming from is different as the plane moves across the earth, regardless of how fast or slow the plane is moving.
1113520
Earth is rotating at a speed of about 1100 miles per hour. If our planet suddenly stopped rotating, the atmosphere would still be in motion at that speed. The atmosphere would be moving so fast it would literally sweep the land masses clear of anything not anchored to bedrock, this would mean rocks, soil, trees, buildings, people and animals. All would be swept up into the atmosphere.
715799
Just over 1000 miles per hour at the equator.\n\nYou don't feel it because it's constant.  When you're in a car, or an airplane, and you're running steady, you don't feel the speed.  Relative to your position, it doesn't change.  \n\nNow, if someone put the brakes on the rotation, things would go flying (but be held in place by gravity).\n\n\nEDIT:  Amy,  your answer is too spooky to mine!
1018691
about 1000 mph.\n\napprox #'s here--earth is 25,000 miles in circuvfrence, 24 hours per day.   this is at equator.\n\ni am thinking, the farther away from equator, the speed can be progressivly slower.
256767
I'm not sure I really understand your question.  Are you how fast a particular point on earth is moving?  If that is the case it's not an easy answer because it depends where you are on the planet.  If you are on one of the poles then there is very little rotational speed.  If you are on the equator then your velocity is much greater.  Think of it like a CD in a CD player.  Also you would need to factor in the speed of the earth as it travels around the sun sometimes spinning in the same direction the earth is traveling resulting in a greater total velocity and sometimes spinning in the opposite direction yielding a lower total velocity.  The final analogy would be to tie a CD player to a string and swing it in circles while the CD is playing.  The speed of a single point, other than the center, of the CD is constantly changing.  However, it's still not even that simple due to the earth's eliptical orbit and varied velocity.
1032818
The Earth moves around the Sun at 66,880 mph. Our Solar System moves around the Milky Way galaxy at 492,000 mph. The Milky Way galaxy moves within our Local Group of galaxies at 671,000 mph. Our Local Group of galaxies is moving at 1,340,000 mph against the background of the Universe. Scootin' right along, aren't we?
767389
If you were traveling at such a speed that an hour lasted 60 minutes, then you would be traveling at the same speed which the Earth rotates. That is the spped that we are all traveling at all times, even when we are sitting still.
450567
The average distance from the Earth to the Sun is 149,597,890 km. Therefore in one year the Earth travels a distance of 2*Pi*(149,597,890)km. This means that the velocity is about: \n\nvelocity=2*Pi*(149,597,890)km/ year\n\nand if we convert that to more meaningful units (knowing there is 365 days in a year, and 24 hours per day) we get: \n\nvelocity=107,300 km/h (or if you prefer 67,062 miles per hour) \n\nSo the Earth moves at about 100,000 km/h around the Sun (which is 1000 times faster than the speeds we go at on a highway!)
1114726
How fast does the Earth rotate?\n\nIn round numbers the Earth is 25,000 miles around the equator, so 25,000 miles in 24 hours is 1,042 MPH.\nBut 1 foot from the pole, the distance around the earth is only 2*1*PI=6.28 feet which is 6.28/5280 or 0.00119 miles. That distance in 24 hours is 0.00005 MPH. At any latitude, the distance around the Earth is 25,000*cos(latitude). For example, at 30 degrees latitude the circumference is 25,000*cos(30)=25,000*0.866 or 21,651 miles. That distance in 24 hours is 902 MPH.\n\nIf the Earth rotated at 10,000 PRM, not only would we all be thrown off, but the Earth would tear itself apart. That is REALLY fast.
600116
Lets see now, Earth rotates aproximately once every 24 hours, thats one over 60 x 60 X 24, thats one over 86400 rotations per second. All the time we are doing that, consider this, we are also going around the sun at aproximately 66500 miles per hour.
834910
You would need to travel at the same speed as the Earth rotates, but also take into consideration the distance you have to travel due to the circumference of the Earth. I.E. If you were on the equater you could work it out easy...take circumference of the earth at the equator (40,000Km) and you know you want to stay in the same spot so for one rotation its 24 hours,  speed = distance over time so at the equator your speed would need to be 1666 Km/h. However because the circumference is smaller at Latitude 51 32N (London) The speed would need to be reduced. But by how much im not certain as I dont not know the relationship between the two circumferences\nHope that helps
433949
The Earth is rotating at about 1040 mph (~1670 kph) at the equator. The speed decreases relative to your distance to the (axial) poles, where it is effectively 0. \n\nTo find out the rotational speed where you live, simply multiply the equatorial rotation speed above by the cosine of your latitude.
563712
Coriolis effect, the apparent acceleration of a moving body on or near the Earth as a result of the Earth's rotation. An object at the Earth's surface moves faster at the equator--because it is moving through a 25,000-mile (40,000-kilometer) circle in 24 hours--than it does away from the equator, where it travels in a smaller circle in the same 24-hour period. The Coriolis Effect alters the paths of projectiles on Earth. Everything from jets to ships to bowling balls are affected by it.
406821
Dan's result seems extremely low and the reason is that when he converted metres to inches he divided instead of multiplying so his final answer needs to be multiplied by about 1600.\n\nI don't think the earth's rotational speed around its own axis is relevant. I am unclear which Dan has taken, this or the earth's orbital speed around the sun.\n\nIf the radius of the Earth's orbit is 93 million miles, then the circumference of the orbit (assuming a circle for simplicity) is 2 pi r or 6.28 x 93 x 10^6 miles. In a fortnight (14 days out of 365) the earth will travel 14/ 365 ths of that distance (ignoring leap years for simplicity) and with 8 furlongs to a mile, that is\n\n8 x 14/365 x 6,28 x 93 x 10^6 f per f\n\nFor an approximate result, say 93 divides into 365 4 times, and divide the 4 into the 8 to leave\n\n28 x 6,28 x 10^6 furlongs per fortnight\n\n= approx 1.75 x 10^8 furlongs/fortnight\n\nOf course the sun itself is moving at about ten miles a second in the direction of Alpha Herculis, but that too is irrelevant to the calculation as is the rotational velocity of the earth on its own axis.
151979
I tried to figure this out and it's incredibly complex, as it turns out.\n\nThe earth rotates at a little over 1037 miles an hour, so you've got that.\n\nThe earth revolves around the sun at about 66486 miles an hour, so you add that.\n\nThen you consider that the sun is moving toward other stars at 45,000 miles per hour.  (and taking us along with it.)  So if you were outside our solar system, you'd see that too, I guess.\n\nThen you add that the sun moves up and down (if you consider the disk of the solar system to be the horizon) at about 261 mph.\n\nThen you add in the sun revolving around the galaxy, which is a difficult thing to calculate, but it can be figured that the sun revolves around at about a blistering 447,386.4 miles per hour.\n\nAdd that all up and you see that, relative to a person standing OUTSIDE the galaxy, we're moving at ABOUT....\n\n\n493,684 miles per hour!  That's awfully fast!\n\nNow, I have no idea how to calculate this, but the whole galaxy is moving as the universe expands...\n\nBut, hope that gives you somewhat of an answer.
884318
How fast is the earth spinning? Easy: 2π radians per 24hours!\nThat's an angular velocity of 0.004166 degrees a second.\n\nThe linear velocity differs with latitude. It's maximum at the equator, but zero at the poles.\n\nEarth doesn't slow down because of rotational inertia. (But remember that the speed of rotation is not constant).\n\nNothing would happen if earth spun at half the speed, excepting (like all the others before me have said) that days would be twice as long.