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Homework Statement
Homework Equations
Sorry about this, I had to put this into wolfram alpha as for some reason it would not work in latex
The Attempt at a Solution
Assuming Ec and Ej are not dependant on time, I have differentiated the first term in equation 10 with respect to time, and replaced the relevant terms with equation 9. The second term I have differentiated the fraction containing N's using the expression in the "relevant equations" section . This has resulted in the following expression
$$ \frac{d^2 \theta}{dt^2} = E_c E_J \left(1N^2 \right)^{\frac{1}{2}} sin(\theta)  \frac{E_{J}^2 sin(\theta) cos(\theta)}{1N^2} $$
Can someone help me figure out why I am missing a factor of ##1/(1N^2) ## in the first term and a factor of ##1+N^2## in the second term? My equation looks similar but I appear to have missed a step
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