These principles are, of course, applicable only for ideal materials under ideal conditions, although the behavior of many solids approaches Hooke's law for infinitesimal strains, and that of many liquids approaches Newton's law for infinitesimal rates of strain.
These principles are under ideal conditions. This is of course. This is applicable only for ideal materials. The behavior of many solids approaches Hooke's law for infinitesimal strains. This is of course. This is applicable only for ideal materials. That of many liquids approaches Newton's law for infinitesimal rates of strain.