Which will hurt more?

getting hit by a ball moving at a constant speed V

or getting hit by the same ball with speed V which was accelerating all the way to the point of impact.

>>9
There is no difference, when discussing from a physics point of view, between "blunt" and "sharp" forces.

The idea that a sharp object can do more damage with less momentum is just a colloquial expression of the point my post was making: that pressure is the deciding factor, not momentum.