On Thu, Mar 01, 2007 at 02:28:20AM -0600, Ron Johnson wrote: > > Point being that the momentum of a meatbag traveling at 120kph is > much higher than that of one going at 95kph Technically, it's the energy of the meatbag that measures the likely damage. energy varies as the square of velocity, whereas momentum varies linearly. So it;s even worse. -- hendrik