[stcredzero]

The destructive power of this gun comes from the energy of its momentum

Sorry, but it sounds like not all readers on this website know the difference between kinetic energy and momentum. Here's a K-12 level website: http://www.batesville.k12.in.us/physics/phynet/mechanics/ene...

It has a very illustrative question: Would you rather be hit by a 1000 kg vehicle going 1 meters per second, or by a 1 kg meatball going 1000 meters per second?

[lobster_johnson]

Not sure why you're replying to me. I literally referred to kinetic energy ("the energy expended to accelerate it") in my comment.

[TeMPOraL]

Your comment seems to be confusing momentum (m * v) and kinetic energy (m * v * v).

[lobster_johnson]

I'm not confusing anything, but I wasn't trying to be scientifially rigorous, either. By "energy of the momentum" I was referring, admittedly imprecisely, to the fact that the kinetic energy is a function of the momentum. Or, to be precise, E_k=p^2/2m. At least as I understand it.