Nadaka said:
Firearms are not melee weapons.
People miss with them because they:
A: are not pointing at the target.
People miss when they swing a bat at an object because it isn't aligned with the object which they intend to hit. The physics are the same and have nothing to do with momentum. Think in terms of inanimate objects if it helps. Example:
A golf ball doesn't dodge anything. If you can't hit it, it's because you lack coordination, not because the ball is physically strong and matching or besting the momentum with which you swing the club. Momentum detemines only how far you can propel the ball if you connect, and how quickly you
may connect -- it does not determine
if you connect.
This is an example borne out in televised golf events on a daily basis. The phrase "A hard swing and a miss!" is commonplace for a reason. If anything, increased momentum has been shown to decrease accuracy. Similarly, the term "wild swing" with regard to boxing and street fighting comes about as a result of this principle in action.
B: the 1/10 of a second it takes the shooter to respond to the movement of a target is enough for the target to move out of the shooters line of fire.
And men armed with bats (or swords) swing far faster than bullets fly? I'm sorry but that is very, very,
very incorrect.
In D&D dexterity represents response time, not actual speed.
It represents response time
and raw manual dexterity. . . also known as
hand to eye coordination. This is evidenced (among other things) by trap removal rules, which are a pass/fail event that have nothing to do with reaction speed but default to DEX in the game mechanics.
It has no effect at all on how fast you can move. Only how fast you can begin responding to a stimulus.
You're right -- it doesn't meaure momentum, but since momentum has no bearing on accuracy in basic physics, it doesn't matter. It doesn't need to represent momentum.
However strength is more important to accuracy than is dexterity with most melee weapons.
Why? Without strength the weapon will move in a slow arc that the target can simply step out of the way, even if it is perfectly aimed.
Again, this has nothing to do with accuracy. Just because something has tremendous momentum does not mean that it is more likely to impact a given target. There is
absolutely no basis for this argument in terms of physics.
All momentum does is determine the amount of distance that an object can travel in X amount of time and the amount of transferable force conveyed by a given object in motion. It does not determine the momentum with which a target itself can move, nor the reaction speed of that target,
nor an attacker's hand to eye coordination. While STR determines momentum, it does not determine
accuracy. Ever.
And before somebody brings up the argument about STR determining the number of blows that an individual can throw in X amount of time, it doesn't do that, either. Strength has nothing to do with physical endurance or reaction time.