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Originally Posted by Upthair
The 'shaking ruler' is only for those who are complete strangers to physics  . If you talked with scientific rigour, your time would be totally wasted. So I chose that pic as a tentative analogy, and used words like 'roughly' and 'in a sense'. |
The fashinating thing about physics is that it has no mercy: either you know it well or it will bite you in the aXX..
You don't need scientific rigour,but examples that need to pertinent to the topic discussed,a lot of stuff looks similar in phisics,but it's not quite the same.
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I think what you said was mostly, but not completely, right, since you were talking about an ideal situation. The strictly backward recoil can of course generate vibrations in directions perpendicular to the recoil. Example: When you fire a pistol at a point on the horizon, your hand experiences upward movement too, which is perpendicular to the recoil.
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and here's my point proven. The strictly backwards recoil generates force vectors,not "vibrations" that are conditioned by pivot points,and yr example is the perfect evidence:when shooting a pistol your wrist becomes the pivot point,hence the rotation upwards,which is amplified on semiautomatic pistols because of the slider movement. Interestingly enough,if you held the pistol "gangsta style",with the grip and barrel horizontally positioned,the recoil will push the pistol inwards towards yr aiming axis.. The crazy stuff u can do at a shooting range
