Internal Presentation of The Velocity Vector
The velocity vector of the constrained Newtonian dynamical system is expressed in terms of the partial derivatives of the vector-function (7):
-
.
(8)
The quantities are called internal components of the velocity vector. Sometimes they are denoted with the use of a separate symbol
-
(9)
and then treated as independent variables. The quantities
-
(10)
are used as internal coordinates of a point of the phase space of the constrained Newtonian dynamical system.
Read more about this topic: Newtonian Dynamics
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