Thursday, December 8, 2011 3:37:40 PM
I don't know how it`s possible that a cannonball could have enough momentum to travel that far, rip through a concrete wall, then through a WHOLE HOUSE, off someone`s roof, bounce across the road, and through a minivan. WTF did they load that thing with? Uranium?
A full size cannonball at 1000fps has about as much kinetic energy as a car travelling at 95 mph. But the force of impact would be over a far smaller area (so far higher pressure) and the ball is far more solid than the car.
Numbers, so you can see I`m not just pulling it out of the air:
1000fps = 304.8 m/s Mass of ball = 42 lbs = ~19Kg.