- #1
shaka23h
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When subjected to a force of compression, the length of a bone (compression Young's modulus 9.4 x 109 N/m2, tensile Young's modulus 1.6 x 1010 N/m2) decreases by 3.7 x 10-5 m. When this same bone is subjected to a tensile force of the same magnitude, by how much does it stretch
Ok after carefully looking at this problem I realized that the formula that would apply here would be
F = Y (delta L/ L0 ) A
Where y = young's Modulus Delta L = change in length and A = cross sectional area. But after looking at this problem I realized that there is no cross sectional area given, therefore I'm thinking that it is just a proportional problem.
It seems like I'm making this problem a bit harder then it actually is. Perhaps I'm missing something important?
I know that Tensile force is opposite Compression but in this case the answer would not just be the negative change in length right?
Please help
Ok after carefully looking at this problem I realized that the formula that would apply here would be
F = Y (delta L/ L0 ) A
Where y = young's Modulus Delta L = change in length and A = cross sectional area. But after looking at this problem I realized that there is no cross sectional area given, therefore I'm thinking that it is just a proportional problem.
It seems like I'm making this problem a bit harder then it actually is. Perhaps I'm missing something important?
I know that Tensile force is opposite Compression but in this case the answer would not just be the negative change in length right?
Please help