Comment on Anon escapes from work
finitebanjo@lemmy.world 2 days ago
You would need to fall something like 1,800 feet (550 meters) to reach terminal velocity. You would be falling for half a minute. There are probably only like 50 or less buildings on earth which qualify.
zergtoshi@lemmy.world 2 days ago
That highly depends on the position of a human trying to reach terminal velocity in earth’s lower atmosphere.
Your number is about right for a human body in horizontal position with spread arms and legs.
Diving headfirst with flattened arms and legs can lead to a terminal velocity of more than double of the above scenario. That requires a lot more fall distance.
finitebanjo@lemmy.world 2 days ago
Care to show your math on that? I found this reference for human drag coefficients when I did my math but it does not mention any spread positions.
zergtoshi@lemmy.world 2 days ago
I leaned on …hubpages.com/…/Drag-Force-and-the-Terminal-Veloc…
and specifically:
…saymedia-content.com/…/drag-force-and-the-termin…
I estimated the area of a body in vertical position as 1/4 of a body in horizontal position.
With C going from 1 to 0.7 and A going from whatever to 1/4 of that, this results in a terminal velocity increase of over factor 2.