Originally Posted by

**mopen80** Hi All,

I have that differential equation that model some mechanical system, but i am confused how to call it:

tau*(dy/dt)+y=tau*k*(dx/dt)+x

tau =R*C time constant of the system.

my question is , how to call this equation with the term dx/dt exist. Also how to simulate it using RC electric circuit. Any idea?

Also if the initial condition is known, does this equation has an exact solution.

Any help is appreciated as i have been struggling with this for long time.

mopen