The problem comes from trying to mix real world physics with game mechanics only in ways that benefit the players and also applying rules where they don't fit [0]. Only the game mechanics allow you to pass it between the peasants so fast and the game already tells you what happens the last peasant throws it and it's a (likely non-proficient) attack with whatever item they're passing with the same range limitations that javelin or improvised weapon has. The item is only on average moving 1900 mph but it's really just being rapidly handed from person to person so the true velocity is a rapid sawtooth as the person moves it to pass it to the next person, enabled by the power of RAW itself to these feats.
[0] This is just an object being passed between creatures not a falling object so the Falling Object rules are irrelevant.