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Old Thursday, March 10, 2011
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Default Pace to keep up with the sun so you're never in darkness?

How fast do you have to go to keep up with the sun so you're never in darkness?
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Old Thursday, March 10, 2011
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Earth completes one cycle in 24 hours, i.e 360 degrees/24 hours,
Or in 1 hours, it rotates = 360/24 = 15 degrees
you may than find traveling speed by= 15/360 x circumference(40,075.16 kilometers)
=1669.7 km/h

Or alternately,
=(circumferernce)/(24)
=(2x3.142x radius)/(24)

=(2x3.142x6371)/(24)
=1668.1 km/h
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Old Thursday, March 10, 2011
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Quote:
Originally Posted by Shootingstar View Post
all the scientists of the forum plz answer his one...


How fast do you have to go to keep up with the sun so you're never in darkness?
Basic Assumption:
You are running along a latitude line (parallel to equator)

Reason for Assumption:
You cant keep up with the sun nomatter how fast you run if you run perpendicular to the equator (along longitudes)

Anyhow, to be able to keep up with the sun, you must match the angular velocity of earth at that latitude line. As you near the poles (north or south) the normal velocity should decrease therefore we take into account the angular velocity which remains unchanged as it is define in rad/sec or rad/min.

Anyhow, this velocity should change with latitude and the velocity at equator is already derived in the above post.

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Old Thursday, April 07, 2011
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you have to move as fast as the Earth rotates

but in the opposite deriction

Last edited by Predator; Thursday, April 07, 2011 at 05:38 PM.
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