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It would seem that in the air resistance section is puts g at -9.8ms<sup>-2</sup>, shouldn't it be positive? I checked it out (in Garry's Mod of all things) and it came out with a negative value for an angle when calculating the angle of reach.
[[Special:Contributions/219.89.205.8|219.89.205.8]] ([[User talk:219.89.205.8|talk]]) 05:24, 28 November 2009 (UTC)
==Further additions==
First this only deals with when drag is proportional to speed, which isn't so since for faster speeds F=cv^2. Second this article doesn't deal with how you account for the curvature of the Earth and Coriolis force and centrifugal force. Umm, I could add how to deal with F=cv^2, but curvature of the earth depends on where you are, same thing with Coriolis force and centrifugal force. I could add how one accounts for that, but it's going to take some time' maybe during the spring break. So if someone else wants to account for that instead of me, please feel free to make the additions [[User:Pseudoanonymous|Pseudoanonymous]] ([[User talk:Pseudoanonymous|talk]]) 22:46, 17 January 2010 (UTC)
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