This is the differential equation of a physical pendulum with no air friction.
In my case there will be a force because of friction and it will be -k.v
My problem is how to include this force to the dif. equ. and what will be the k?
i know the pyhsical pendulum. İ do not need to solve differantial equation.İ just need to derive it.İ find a lot of sources about it but none of them include air friction.
and thaks for the reply
Homework Statement
For my control system course i need to derive differential equation and period of a physical pendulum.
Pendulum rod's mass is m, length is l and has a spherical mass M
Homework Equations
i need relevant equatins so obviously :D
The Attempt at a Solution
i know that i...