how fast would i have to walk if i wanted to be in permanent sunshine always keeping sun behind me for a whole week
going east to west
2007-06-14 10:19:20 · 12 answers · asked by corkyboy 1 in Science & Mathematics ➔ Astronomy & Space
Since the Earth rotates in 24 hours, you would have to walk the circumference of the Earth (40000km or 25000 miles) within 24 hours., which gives a speed a little bit over 1000mph. If you are at a different lattitude, you must multiply by the cosine of this lattitude.
For example, if you live in New York City (~40 degrees North) and want to stay at the same lattitude, you have to walk at: 25000*cos(40)/24 = 800mph
In Anchorage, Alaska (61 degrees North), it would be "just" 500mph.
2007-06-14 10:29:11 · answer #1 · answered by Damien 4 · 0⤊ 0⤋
Assuming you were walking around the equator, then approx. 1000 mph.
Additional : that's because the circumference of the Earth is about 24 000 miles, and it takes 24 hours to do one revolution. Actually the circumference is 24 902 miles at the equator so a more accurate speed would be 1038 mph.
2007-06-14 10:23:17 · answer #2 · answered by Otter 6 · 3⤊ 0⤋
So, you've proved there are some rather clever peeps on answers tonight! I don't know anything that would help a human go at that speed so you should just pop up to the arctic circle this time of year and you'll see the arctic summer sun for a whole 24hours, if that's what floats yer boat!
2007-06-14 10:32:14 · answer #3 · answered by Red Dragon 3 · 1⤊ 1⤋
Great question and great answers. To simplify the answers , to stay in sunlight permannat, walk west as fast as the earth is turning. Which is as they have all said depends on latitude.
Any speed faster, and you would go into darkness eventually. Any slower asn the earth would carry you into darkness.
2007-06-14 18:53:53 · answer #4 · answered by orion_1812@yahoo.com 6 · 0⤊ 0⤋
At the latitude of London 640 mph
2007-06-14 10:32:09 · answer #5 · answered by Anonymous · 0⤊ 0⤋
At the equator, the earth rotates at around 1,000 MPH, so you'd have to walk VERY fast indeed. At higher latitudes, the speed is lower, and at the poles it's one rotation per day.
2007-06-15 07:16:32 · answer #6 · answered by Anonymous · 0⤊ 0⤋
If you were at the north pole you could relax in the sun for the whole week and not walk at all.
2007-06-14 10:30:36 · answer #7 · answered by Anonymous · 2⤊ 0⤋
About 800 mph
2007-06-14 10:37:09 · answer #8 · answered by Gene 7 · 0⤊ 1⤋
Angular velocity of earth: W = 7.2921159 Ã 10-5
W=v/r where r is the radius of earh and v is the tangental velcity of earths rotation at its surface.
r=6,378135 m
So you would have to run with a speed of 465 m/s
2007-06-14 10:29:43 · answer #9 · answered by kennyk 4 · 0⤊ 0⤋
If you stood at the North Pole in summer, not very fast at all
2007-06-15 09:12:46 · answer #10 · answered by funkysi65a 3 · 0⤊ 0⤋