- #1
Izzhov
- 121
- 0
I have recently taken an interest in the idea that all pendulums of the same length are isochronous, and am currently trying to figure out an equation for the period of a pendulum of a given length. I started out by trying to find an equation for the angular distance the pendulum travels as a function of time, so I drew some vectors, and this is what it boiled down to:
[tex]\ddot{ \theta} = g \cdot sin( \theta)[/tex]
where theta is angular distance as a function of t (time).
I realize that if I can can solve this differential equation, solve the result for t and convert theta to arc length over radius length, I will have solved the problem, but I have no idea how to solve this differential equation in the first place. Can someone help?
[tex]\ddot{ \theta} = g \cdot sin( \theta)[/tex]
where theta is angular distance as a function of t (time).
I realize that if I can can solve this differential equation, solve the result for t and convert theta to arc length over radius length, I will have solved the problem, but I have no idea how to solve this differential equation in the first place. Can someone help?
Last edited: