Is KE not a component of momentum? As is speed. The harder something hits, the harder it is to slow down. The faster something moves, the harder it is to slow down. The more momentum something has, the harder it is to slow down. These pieces all work together. It merely comes down to how you go about accomplishing your goal. Quite honestly, I wish my arrows only penetrated about an inch into a target. They'd be much easier to pull.<img src=icon_smile_wink.gif border=0 align=middle>
Phil.
"Could you guys be quiet, my dad's trying to shoot."<img src=icon_smile_shock.gif border=0 align=middle>