text: Isn't it illegal for eggs to travel that fast?\nEspecially since the presence of a brick wall strongly suggests that this is taking place in an urban area. \n\nYou have a lot of unaddressed variables here:\nAt 8 ounces this is an uncommonly large egg.\n(It could of course be an ostrich egg, which might account for its extreme speed and size.)  \n\nWhich part of the egg hits the wall first?  \nEggs are of course ovoid, and the lateral surface would present a greater surface area to the wall.  \n\nIs the egg still inside the ostrich?  \nThat would certainly skew your results, and would probably skew the ostrich.    \n\nIf it isn't an ostrich egg, the formula below is less applicable,  since present terms are dependent on the mass/viscosity of ostrich eggs.  \n\nHowever, all things being equal, where: \n\ne is the egg's weight in ounces,  \nm is its velocity in miles per hour\nc is the clot who threw it in the first place.  \n\nThe requisite formula proves to be e=mc2\n\nQ.E.D.