Recent content by Omkar Vaidya

https://services.math.duke.edu/education/ccp/materials/diffeq/pendulum/pend1.html https://en.wikipedia.org/wiki/Damping_ratio

Yes, I think that would be my question too. I did change the v^2. However, the question I am trying to answer (sorry for not including that) is "How does changing A(area) affect damping?" That is where the site comes into use, by comparing damping coefficients.

Homework Statement I have found a differential equation that models a non-linear pendulum with air resistance, and now I have data. I've looked at the following site for guidance on how to analyse the data. It compares the motion of a damped spring, and compares it to the motion of a damped...

Did you look at the derivation of that equation I came up with? I just need someone to check if its correct (apart from the signs, and absolute values)

yes, I thought I already changed that. Thanks again.

Thanks, this does work. For some reason I didn't think of the absolute value as a solution to the v^2 problem. Now I get a graph that looks like the following. It does not pass through the x-axis like it should. https://prnt.sc/i6cgpx

I did, and there does not seem to be any. However, the amplitude does seem to change, but on average it remains the same.

I'm not quite sure what you mean by cycles. I set the domain on the graph to be [0, 2pi].

There are two images. Here are the links: http://prntscr.com/i6bh0j https://prnt.sc/i6bfv0

Homework Statement I need to come up with an equation that would model the motion of a non-linear pendulum with air resistance. [/B]Homework Equations Fc=mgsintheta Fdrag=(1/2)p(v^2)CA The Attempt at a Solution I started with mgsintheta-(1/2)p(v^2)CA=ma After substituting v=r*omega and...