Earlier I posted the following but made a copy/paste error. The corrected table is below as it is too late to correct the original.
The line in error was the 5,572fps line, for which I had the wrong energy.. 7,920fps should have been the velocity and 5,572fpe the energy. In the original post I had 7,555 as the energy but that is in joules, not ft-lbs.
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Every projectile of a given mass has a specific amount of KE depending on its velocity. The energy curve for a 40g projectile at various speeds looks like this:
fps ==> ft-lbs
1,000 ==> 89
2,000 ==> 355
3,000 ==> 799
4,000 ==> 1,421
5,000 ==> 2,221
7,920 ==> 5,572 (This is 5400mph which is about Mach 7 or rail gun speed)
10,000 ==> 8,883
100,000 ==> 888,332
2,732,093 ==> 899,016,663 (Speed of light in air)
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Last edited by Coyote_Hunter; 08/30/17.
