Quote:
Originally Posted by ujiro
Considering the deformation of soft BBs is an energy-requiring process. Thus, a lot of the energy of the impact is transferred into deforming the BB. With hard BBs, the BB does not deform, and therefore a larger amount of the energy would be transferred into the flesh...
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This makes sense in my book. Further, if object A 'rebounds' in a elastic collision with object B, it will impart more momentum than if it were a inelastic collision. Even more, impulse varies inversely with contact time, so regular BBs would have a lesser impulse than the BBBMAX.
This is all basic physics, however, and we don't have a definitive equation for 'injury' as a function of any of these parameters. Easy, where is the equation you referenced in your post?