In Physics, force is defined as: The push or pull on an object with mass causes it to change its velocity. Force is an external agent capable of changing a body’s state of rest or motion. It has a magnitude and a direction. The direction towards which the force is applied is known...
In (b) a rod is stretched from length Lo to L. Critical strain strain ε, γ Figure 3 Behaviour of a Hookean elastic material: the deforma- tion is linear up to the elastic limit associated with either a critical stress or a critical strain. significant contributions to optics: Isaac ...
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