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phil
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Good afternoon -please bear with me -I had to skip physics as a subject -so my knowledge is good in some places, non-existant in others.
There was an interesting post in the archives about the momentum of a bullet -that if two bullets impact with the same energy, the one with more momentum will "kick" more?
Momentum is virtually never mentioned in the gun press, but Energy (KE) is a lot -but what does it actually mean? If I shoot something the momentum is what moves the object back -what difference would different levels of energy have? If two bullets have the same momentum, the lighter one will be faster, so have greater KE -what practical effect does that produce?
Related question -a hollowpoint bullet will mushroom when it strikes a liquid/semi-liquid due to a hydraulic effect if the bullet is moving fast enough -is this governed by KE or momentum -is the hollowpoint more likely to open if I make the bullet heavier or make it lighter and faster?
phil
There was an interesting post in the archives about the momentum of a bullet -that if two bullets impact with the same energy, the one with more momentum will "kick" more?
Momentum is virtually never mentioned in the gun press, but Energy (KE) is a lot -but what does it actually mean? If I shoot something the momentum is what moves the object back -what difference would different levels of energy have? If two bullets have the same momentum, the lighter one will be faster, so have greater KE -what practical effect does that produce?
Related question -a hollowpoint bullet will mushroom when it strikes a liquid/semi-liquid due to a hydraulic effect if the bullet is moving fast enough -is this governed by KE or momentum -is the hollowpoint more likely to open if I make the bullet heavier or make it lighter and faster?
phil