this post was submitted on 25 Jan 2024
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NonCredibleDefense

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Mr. Clean magic trench eraser (slrpnk.net)
submitted 9 months ago* (last edited 9 months ago) by [email protected] to c/noncredibledefense
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Sorry forgot to crop the photo - fixed

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[โ€“] [email protected] 12 points 9 months ago (1 children)

Can someone calculate max theoretical thrust from firing these?

[โ€“] L3mmyW1nks 29 points 9 months ago* (last edited 9 months ago)

https://what-if.xkcd.com/21/

For an AK47 it'd be 57.2N, so probably a bit less times 88, totalling something below 5000N or so for the ejected bullets, plus 30% for gas n stuff.

I highly recommend the xkcd in any case.