I have something even better, an actual longbow, well, a bit stronger than a longbow in this video, and this is an actual test , with real arrows, filmed live.
https://www.youtube.com/watch?v=Ej3qjUzUzQg
Now as the video intended to show, the arrow did absolutely nothing to the plate armor, not even a scratch.
This one is even better, crossbows, and not just the regular ones, monstrous sized ones, a bit anachronistic too since those crossbows were used a lot later compared to that specific breastplate, notice the distance he is shooting from as well, it's ridiculous, since as we can see, neither of them do much to the breastplate. The heavy crossbow he uses has almost around 1000lbs draw weight, which would make it roughly around 10 times stronger than a longbow, as a result, anyone trying to penetrate plate with a mere bow and arrow would make me laugh.
https://www.youtube.com/watch?v=XMT6hjwY8NQ
@lion8000, I think the whole longbow beating plate armor is a magic english myth, mostly due to propaganda and a slight touch of nationalism, if that thing would be the machine gun they make it seem, there would be no purpose for the crossbow to even exist. In fact, I doubt that even that tiny hole in that video is genuine, since they aren't showing the tests, just the after effects, I find it hard to believe that damage was caused by a longbow, further more, the chestplate they present seems rather thin as well.