Why is stress a property of a material rather than a property of an object? Watch
I'm going to quote in Tank Girl now so she can move your thread to the right place if it's needed.
This was in my physics practical handbook, I'm trying to pull out different explanations but it's all muddled. I know what stress and strain are but how is this applied to the question?
I'm not entirely sure what this question is calling for, but perhaps it's asking as to why the resultant strain depends on the material for a given stress? As in, the Young's modulus of a material.