Not exactly a hard thing to figure being possible. Simple physics - we worked on such circumstances in 11th grade physics class. Years ago I could have computed the speed, force, etc.   In fact, it's the continuing to hold on that would be the hard part. Also, everytime I've heard the song (and the way I sing it) is that it's 14 floors, not 30 feet. That'd might just change the speed a bit - especially upon hitting the ground.

The Mythbuster segment that was the scaryest was the one where poopy seeds actually do produce false positives on opiate drug tests.