Assuming of course there are no barriers to interfer with your speed or ground travel at sea level.
2006-06-13 15:20:01 · 7 answers · asked by shed52 1 in Science & Mathematics ➔ Earth Sciences & Geology
about 1000 mph.
approx #'s here--earth is 25,000 miles in circuvfrence, 24 hours per day. this is at equator.
i am thinking, the farther away from equator, the speed can be progressivly slower.
2006-06-13 15:27:11 · answer #1 · answered by Anonymous · 0⤊ 0⤋
If you simply want to circle the earth and maintain the sun in a fixed position relative to your own position as you travel west, you would have to travel at a speed equal to the speed of the rotation of the earth, which is a little over 1000 mph (assuming that you're traveling over the earth's surface at the equator). It's very easy to visualize why this is true. Imagine that you are standing on the surface of a large ball, with a light hanging from the ceiling overhead. The ball represents the earth and the light represents the sun. If the ball begins to rotate, you have to walk counter to the rotation of the ball at a speed equivalent to the ball's rotational speed in order to keep the light directly overhead. Any faster, and you will begin to gain ground and move forward relative to the light. Any slower, and you will begin to lose ground and move backward relative to the light.
2006-06-13 22:57:12 · answer #2 · answered by Malik 2 · 0⤊ 0⤋
It depends upon what latitude you are at. The circumference of the earth at the equator is approx 25,000. It rotates at right about once every 24 hours. At higher latitudes, the circle around the planet is smaller. But, since they scrapped the Concordes, I don't know how you would find something to travel along at approx 1,000mph. Just go to the North Pole in the summer and stand there. The sun doesn't set for a few months.
2006-06-13 23:23:24 · answer #3 · answered by quntmphys238 6 · 0⤊ 0⤋
On the equator the speed would be 900 knots exactly
above or below the equator the speed would 900 knots multiplied by the cosine of the latitude that you are at. As long as you travel at the same latitude in a circle around the pole.
Example at 60 degrees north you would have to travel at 900knots multiplied by cosine of 60 which is .5 so you travel at 450knots at the 60th lat.
2006-06-13 22:35:07 · answer #4 · answered by Neilman 5 · 0⤊ 0⤋
The circumfrence of the earth (at the equator) is 24,900 miles. The earth rotates once per 24 hours or a rotational speed of 1037 miles per hour. So if you traveled west at that speed, at the equator, the sun would never set (or rise, depending on when you started.)
2006-06-13 22:34:57 · answer #5 · answered by MikeE 1 · 0⤊ 0⤋
The earth's rotation is approx. 1600 km/hr.
2006-06-13 22:30:44 · answer #6 · answered by Stuart J 2 · 0⤊ 0⤋
the speed of light, duh
2006-06-13 22:24:52 · answer #7 · answered by theobromo77 4 · 0⤊ 0⤋