by BillytheKid » Tue May 14, 2013 8:56 pm
He would be closer to being correct if the hunter's chest, and the Prey's chest were pressed together, and the round was sandwiched between them and detonated.
But, of course, he is not correct because there is more than one law of physics working.
For the "BANG" side of the equation:
Consider Newton's first law where the hunter's body is at rest. Certainly with my mass, a higher force must be exerted to overcome the at rest inertia to begin putting it into motion in the opposite direction.
Consider Newton's second law where he speaks of acceleration. A projectile does not accelerate instantly. It accelerates over time, and the force acting on a body is inversely proportional to it's mass. Since my body has much more mass than the projectile, it is the projectile that will accelerate to high speeds. Also consider the launching of a projectile out of an AR is part of a variable mass system that includes movable buffer weights and where mass is even lost due to bleeding gasses to operate the mass of mechanisms. What "opposite" force remains is spread over a relatively wide area of the shoulder by the flare of the butt-stock, and the hunter is not blown into the next county.
Continuing with Newton's first law, where (hopefully) the body mass of the prey is standing still, and will require a much larger force to overcome it's at rest inertia and actually push it away.
Continuing with Newton's third law, because of the prey's at rest inertia, it is actually pushing against the body of the projectile (opposite direction), and is pushing against the projectile with equal force. Since acceleration and mass are inversely proportional, the prey, also, will not be blown into the next county.
Continuing with Newton's second law, we no longer have acceleration forces on the projectile and we no longer have a variable mass system, but we now have the projectile as (basically) a constant mass system, and an Impulse occurs where the force of the projectile acts over a very short amount of time on a relatively small part of the body of the prey.
For the "FLOP" side of the equation:
The net force of the impulse caused by the projectile's impact on the body of the prey creates a stultifying dysfunction between the synapse and the axon.
Newton's law of gravity takes over.
Bill
"Now I am Breitbart, and there are millions more of us." - Me