Speed around earth for constant day light

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SUMMARY

To maintain constant daylight while traveling around the Earth, one must match the rotational speed of the Earth at their latitude. The speed varies, being zero at the poles and maximum at the equator, where it is approximately 1670 kilometers per hour. The formula v = π * D / 24 hours can be used to calculate this speed, where D represents the diameter of the Earth at a given latitude. At the equator, D is approximately 12,742 kilometers, leading to the conclusion that one must travel at a speed of about 1670 km/h to stay in line with the sun.

PREREQUISITES
  • Understanding of Earth's rotation and the concept of the day-night line.
  • Basic knowledge of geometry and the formula for circumference.
  • Familiarity with latitude and its effect on speed calculations.
  • Ability to perform calculations involving π (pi) and basic algebra.
NEXT STEPS
  • Research the effects of latitude on rotational speed using Earth's geometry.
  • Explore the implications of constant daylight on solar energy collection.
  • Learn about the physics of motion in relation to planetary rotation.
  • Investigate real-world applications of maintaining constant daylight, such as in aviation or satellite positioning.
USEFUL FOR

Students of physics, aerospace engineers, and anyone interested in the dynamics of Earth's rotation and its effects on travel and energy collection.

aiop
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what speed would you half to obtain going around the Earth to be constantly in line with sun, so it would be day time aways. and how would you go about calculating this. what kinds of equation could you use. Thanks Aiop.
 
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If you wish to to constantly in line with sun, you need to travel at the same speed as the day-night line travels on the earth. You can imagine a line that separate the part of Earth been lighted and not lighted or you can observe it on google earth. This speed certainly is not a fixed value, but longitude by the latitude, and it would be zero at poles during the summer, while it would be maximum at equator. Note that at opposite pole, no matter how fast you travel, you would not see the sun.
If you imagine Earth as a perfect sphere and rotates at its vertical axis, using equation v=pi*D / 24hours will give u a approximate answer, D is a function of latitude,varies from zero at pole and 6600km? at equator?
 
Or you could just look it up. Google the speed at which Earth rotates. If you were at the equator just go that speed in the opposite direction.
 

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