What is the spring force of a 3/4" binder clip?
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M$2 Answers
Assuming you use Hooke's Law (F=kx) , you need to know spring constant of the material (k) and you also need to know displacement of the clip. Generally the "3/4" refers to clip's width. Not how many sheets it can hold.
Perhaps this is a trick question? ;)
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M$
My freind says 3.1415 but I like my answer best.
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M$
I can't seem to reply directly to your comment, unless the button lies above, rather than below.
If 3/4" is the clip width and you don't know the materials, it definitely seems a trick question to me.
You need to know how many sheets it holds. This is "x"...displacement
You need to know the materials in order to know "k". That is why I included the link to a Google book which discusses design possibilities. Not all binder clips are created equal. There is no universal binder clip constant. This will depend on materials used, and thickness of said material.
If you have an actual binder clip to test, you could solve for K by applying a measured force and measuring the actual displacement that occurs. If you applied the force to a hinge you would also need to take torque into account.
I'm not an actual engineer but I took classes years ago, and this seems like a question I would use, if it's possible to write in the answer "no solution, insufficient data." Engineering is not just filling in variables and solving equations. It's critical thinking.
Such a question also stimulates integrity. Perhaps your "boss" did actually make an error. Or maybe he's just testing whether you are afraid of offending authority, by pointing out the mistake. Rank is to be respected, but everyone can make mistakes, no matter what experience. And of course, if it is an issue of simple dominance, this is what causes companies to fail.
These are my thoughts for now, hopefully it stimulates a process for you
I know this can get a bit social and philosophical, and that's just the point, of a true liberal education, which in my understanding, seems to be fading in universities.
Let me know your options and how it goes. Best of luck
No, this is not a trick question. I can't seem to find any information on the clamping force of binder clips.
Yes, 3/4" is the width of the clip, not how many sheets it can hold.
There is just not very much technical info available out there for binder clips. If I could find k or even the material used I might have a shot at figuring this out. Short of that, I thought I'd ask here to see if any one had run across this before.