As far as "contact time", this could best be described as a bullet - a rather s-l-o-w, *reverse motion* bullet - that is, the object did not penetrate the human form in the same manner. It (the impact moment) could be called "instantaneous" as in "a glancing blow".
By "reverse motion", I'm...
This past weekend - Sunday, July 26th to be precise - Ferrari Formula 1 driver Felipe Massa suffered a HORRIBLE head / eye injury in the Grand Prix of Hungary as a result of an object striking his helmet and visor after having been "thrown" (disconnected) from another racing car ahead - an 800 g...