Except now your F cant exceed the stress point in the silicon b4 it rips.
its just not all tanks are made the same.. and typically thats why rimless tanks cost a ton more.
Not arguing with the calculation in the slightest, but without knowing anything about the silicone used in the tank there's no way to say whether it's strong enough or not without trying it out.
I think that the main reason rimless tanks are expensive is that they require more care in their construction for visual purposes rather than the super special silicone that they use. They also are only sold by a few vendors to a fairly select group of aquarium enthusiasts who are willing to pay the premium.
"physics is rarely wrong..."
Actually, it's NEVER wrong. Data input can be wrong, laws of Physics...Never!!!
Hope this is a joke. I suppose that physics itself, the fundamental interactions in the universe, cannot be wrong. Our understanding of those interactions, which we might call the laws of physics, are known to be wrong. They are fantastic models and approximations of the things we see in the universe, but there are known problems with them, and phenomena that we cannot account for within them. We've gotten incredibly close to being right, and I detest the people who try to downplay the advances that have been made in science by claiming that there's no reason to trust science as "the answer will just change in 20 years," but close only counts in horseshoes and hand grenades.
In any case, I've got a derimmed 20L sitting on a stand in my dining room that doesn't leak a drop (extreme derimming, as shown with the 10g, all of the visible corner silicone removed.) I've also got a mutant in my basement that for these purposes is a 40B that is rimless and has the silicone heavily trimmed as well. I'd be more concerned about derimming a 2.5g tank than a 10g, honestly, as the 2.5g uses glass that isn't even single strength. I've not seen a 10g use anything but double strength or thicker (1/8".)
I'm not saying that every tank will come out nicely. I'm sure that there are people asleep on the job at some of these factories who did a terrible job of getting the seams right, and it's a near certainty that some will leak. It's a choice for you to make.