Check out the "math videos" at the bottom of my blog post
https://www.physicsforums.com/blog/2005/07/09/physics-videos/
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#4
mlowitz
2
0
Thanks all for your input.
As a follow-up, can someone recommend online material (beside the course textbook) to use to put together AP Calculus lectures? I'm especially interested in material related to the Hostetler/Larson Calculus text.
I'm reviewing Meirovitch's "Methods of Analytical Dynamics," and I don't understand the commutation of the derivative from r to dr:
$$
\mathbf{F} \cdot d\mathbf{r} = m \ddot{\mathbf{r}} \cdot d\mathbf{r} = m\mathbf{\dot{r}} \cdot d\mathbf{\dot{r}}
$$