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Old 02-07-12, 12:10 PM   #17
Sailor Steve
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Quote:
Originally Posted by Tribesman View Post
Doesn't terminal velocity mainly revolve around the principle of a lack of further acceleration?
As the air gets thicker drag increases, and the object slows down. He may be close to mach 1 at 100,000 feet, but at 5000 feet he'll be down to about 120 mph, or 200 kph.

Quote:
What if he sticks his arm out or doesn't? either from a plane at 20,000 or from a balloon at 120,000? what if he sticks both arms out in an las vegas elvis suit?
With the arms out the drag is increased. If the diver keeps his arms tucked at his sides he'll fall a little faster.

From the article I linked

Quote:
A person has a terminal velocity of about 200 mph when balled up and about 125 mph with arms and feet fully extended to catch the wind.
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