- #1
SamRoss
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- Is rigidity measured in units of force? If so, why?
In something I was reading, I saw the "stiffness" of a material measured in Newtons per meter which makes sense to me because something that is stiff would require more force to change its length. In other words, "Stiffness is the number of Newtons required to condense a material by one meter." However, I also saw that the "rigidity" of materials was being measured only in Newtons. I couldn't find any intuition about this. It might be helpful if someone were to complete the following sentence for me. "Rigidity is the number of Newtons required..."