State-Space Model of a Force-Driven Mass
For the simple example of a mass driven by external force
along the
axis, we have the system of Fig.1.6.
We should choose the state variable to be velocity
so that
Newton's
yields
![$\displaystyle \dot{v} \eqsp \frac{1}{m} f.
$](http://www.dsprelated.com/josimages_new/pasp/img216.png)
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