G acceleration
G acceleration
(OP)
If a bullet is shot out of a gun at an acceleration of 1000 g's is the acceleration 1000*32.2 ft/sec^2?
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RE: G acceleration
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RE: G acceleration
RE: G acceleration
Some quick approximate math:
Assume uniform acceleration = a
V=at+Vo
S=1/2at^2+Vot+So
Assuming Vo and So are zero:
S=0.5at^2
Substitute t=v/a, and S = 0.5a(v/a)^2 = 0.5v^2/a
or a = 0.5v^2/S
Say, for 38 special, you might get 750 fps out of a 4" barrel:
a = 0.5 x (750 fps)^2/(0.333 ft) = 844,000 ft/s^2 or 26,000 g's...and this is a low-powered round. (This is the average acceleration, assuming acceleration is uniform in the barrel.)
RE: G acceleration
A 105mm M735 APFSDS round has a PEAK acceleration of around 45,000 g's, but it occurs around 2.6 ms after firing, while the round doesn't leave the barrel until around 6.6 ms after firing, at which point the acceleration is a mere 12,000 g's.
TTFN
RE: G acceleration
RE: G acceleration
Like "don't jerk the trigger?"
RE: G acceleration
RE: G acceleration
I am finding this extra information very intriguing.
Keep the good work guys!