1. Re: bullet code (was ICONS - dead horse)
- Posted by Everett Williams <rett at GVTC.COM> Feb 07, 2000
- 401 views
- Last edited Feb 08, 2000
On Mon, 7 Feb 2000 20:27:45 -0500, David Roach <roachd_76 at YAHOO.COM> wrote: >I gues I did George but do you agree with me that an object can not >fall 999.5 feet/s. >Here is where I have found all of my info. If I am missing something. >Please tell me. My program is dependant of these equations. Thank you. > >roachd_76 Get a CRC handbook. These questions have been settled at this level for several hundred years. The equations that you are using do not correct for atmospheric friction. Atmospheric friction is not relevant to slow moving objects, but is highly relevant to objects in this speed range...approximately 681 miles per hour...close to the speed of sound at sea level...above it at higher altitudes. Without atmosphere considerations, 999.5 fps is not an excessive speed. Look up in the sky some night and when you see a streak of light, you will have an answer to that question. Most of the math at this level was developed to work out the science of ballistics. Last time I looked, the ballistic tables were available from the US Naval Observatory site. Everett L.(Rett) Williams rett at gvtc.com