OK, PF, I have an argument to settle and I need some expert advice. A friend of mine claims that it is possible to throw an orange through a 1/2" sheet of drywall (gypsum board); several other friends refute his claim. I would like to do the math to prove/disprove the theory, but my line of work doesn't give me a lot of practice with the physics of such dynamic elements. Question to the forum: how would I go about setting up an equation solve for this problem. Thanks in advance!