Not really. The way I understand it is that, while a cat can die from any fall, they tend to receive less damage after reaching terminal velocity if they fall from a height of at least six stories, which naturally increases their chances of surviving the fall. A closer distance to the ground means that the cats don't have enough time to relax, causing them to hit the ground with their muscles tensed, which can increase injuries received when they land.
Alternatively, the wikipedia article mentioned the possibility that, due to a cat's righting reflex, the cat naturally flattens itself, thereby increasing drag and possibly lowering its terminal velocity to a survivable speed.
edited 3rd Feb '12 2:51:25 PM by Winglerfish
In this episode, Michael attempts to construct a time machine to escape debt and dinner party obligations.