Posted by OhioD14 on February 12, 2009 at 21:25:00 from (75.164.81.104):
In Reply to: OT-Balistics question posted by Bill Porter on February 12, 2009 at 20:13:07:
Please dont try this as it is dangerous because of the large potential energy of the projectile when striking the ground after a fall from such a great height. Repeat, this could hurt or kill a person on the ground.
My calculations show about 37161.22 meters 37.161 km, or right around 23 miles in height, and would take about 174.17 seconds to get there. At this instant in time, the projectile would be completely depleated of its kinetic energy, have zero velocity.
If you are trying to make a spacecraft, you would be short by at least 50 miles, since earths gravitational space starts around 120 km (75 mi). Plus the winds at the higher elevations are moving at quite high rates of speed
if you are thinking maybe someone shot down the satelite with a firearm, i would say it was highly unlikely.
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