Quote:
Originally Posted by Polar Bear
Go read a physics book, guys.  |
Well said. The situation is not equivalent because the brick wall is not moving therefore it's momentum (mass x velocity) is 0. This is directly proportional to the kinetic energy of the object, which determines all kinds of things such as damage and injury. If they don't believe this, there is always the field experiment----run your cart head on into another going 20, and run it into a brick wall at 20. Care to guess which is worse?