When we fold a paper& tear it, it gets torn on the same line of our fold..?
Question:Why is it not getting torn on some other point? What makes it to get torn on the same place(the line of our tear)?
Answers:
I think its because each little fibre has been damaged on the exact point of the fold. Therefore when you apply stress (by tearing the paper) the weakest points are where each fibre has been damaged. This is where it is weakest, so this is where it tears.
the weakness of the paper caused by the fold.
I think this may be a matter of physics and may best be a question posed to that area of science on this web site.
But my take is that it may be a matter that when we tear the paper, the tear follows the line that is the most weak on the paper.
I'm not a scientist, but it seems to me that the fibers and/or molecules of the paper would become their weak when we fold it.
Hope this has been of some help. Bye
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