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Old 09-03-2006, 10:08 AM
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eldeguello
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Default RE: knockdown power... fact or myth?

ORIGINAL: mello_collins

Newton’s third law is:
“For every action, there is an equal and opposite reaction.”
“Forces always occur in pairs. If object A exerts a force F on object B,
then object B exerts an equal and opposite force –F on object A”

or in slogan style:
“Every action has an equal and opposite reaction”
The Law of Momentum Conservation The Law of Action-Reaction (Revisited)
A collision is an interaction between two objects, which have made contact (usually) with each other. As in any interaction, a collision results in a force being applied to the two colliding objects. Newton’s laws of motion govern such collisions.


A bullet has no more force than the actual recoil of the rifle. Acceleration and mass are inversely proportional. The acceleration of the rifle (Recoil) is a function of its mass related to the energy released buy the gunpowder. The same can be said of the bullets acceleration. It has less mass thus accelerates at a higher rate. Given a 100 percent transfer of energy into the animal in question it can be assumed that the acceleration of the animal (deer) would be even less than the felt recoil of the rifle. Given that its mass is much greater than the rifle that the bullet came from.


mello
Hmmm....."If you subscribe to Newton's Third law of Motion, no projectile can ever deliver a greater blow to the target than is evidenced by the recoil effect in the opposite direction.

For example, some people thinkthat "a .45 ACP bullet will knock a man down regardless of where it strikes him". This too is B.S.! I once watched a demonstration at Fort Bragg NC in which one sergeant fired GI .45 APC Ball ammo at another sergeant's hand who was equipped with a Kevlar "catcher'smitt", with which he was CATCHING THE BULLETS and holding the mitt out palm up so the audience could see the bullet he just caught! Range, about 15 feet. Each time the bullet impacted the mitt, his hand jerked backward some, about the same amount as did the hand of the guy shooting the pistol! I therefore assume the mitt weighed about the same as an M1911A1.


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