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Saturday, 11 April 2015

Dynamic

music dynamics


The dynamic is the branch of mechanics that deals with the study of the motion of bodies and its causes or, in more concrete terms, the circumstances that determine it and modify it. The complete study of the mechanics also includes static and kinematics:

 the dynamic is different from the first that studies the configurations of mechanical equilibrium, the second that studies, in the abstract, all motions conceivable but not about determining which motions can occur in a particular experimental context.

The study of the dynamics is conducted primarily referring to an abstract entity, with mass but with negligible sizeof material point. All related laws of material point can then be extended to the real bodies (with mass and of finite size) interpreted as systems of material points; if we deal with bodies in which the relative distances between the points of the system must not vary over time, it is called "rigid body dynamics"; otherwise it is called "dynamic of deformable bodies."