2.1.4 AP calc exam graph properties • Physics Forums

karush · 2020-09-22T05:20:14+00:00

screenshot to avoid typos I picked B just could see the others as definite insights?

Thread 'How does time derivative commute from one variable to another?'

I'm reviewing Meirovitch's "Methods of Analytical Dynamics," and I don't understand the commutation of the derivative from r to dr: $$ \mathbf{F} \cdot d\mathbf{r} = m \ddot{\mathbf{r}} \cdot d\mathbf{r} = m\mathbf{\dot{r}} \cdot d\mathbf{\dot{r}} $$

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MHB 2.1.4 AP calc exam graph properties

Thread 'How does time derivative commute from one variable to another?'

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