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I could up the samples/min, but I'm still trying to get my head around the data... I synced up the video to help- that's what you see in the screencap..
OK.. messed with the data some more...
I offset the "Z-Axis" numbers to cancel gravity's 9.8m/s^2 baseline, then recalculated the net forces using a vectored sum of all 3 axis
here's the screen shot
if I assume a 1,200 lb tongue weight, a spike of 6.23 m/s^2 (converting to inch/sec^2) calculates to approximately 24,000lb force at the tongue... is that right?
Seems like some serious force....
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