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6.3: Movimiento Circular - Aceleración Tangencial y Radial
https://espanol.libretexts.org/Fisica/Mecanica_Clasica/Mec%C3%A1nica_Cl%C3%A1sica_(Dourmashkin)/06%3A_Movimiento_Circular/6.03%3A_Movimiento_Circular_-_Aceleraci%C3%B3n_Tangencial_y_Radial
\[\overrightarrow{\mathbf{a}}(t)=\frac{d \overrightarrow{\mathbf{v}}(t)}{d t}=r \frac{d^{2} \theta(t)}{d t^{2}} \hat{\boldsymbol{\theta}}(t)+r \frac{d \theta(t)}{d t} \frac{d \hat{\boldsymbol{\theta}}... $\overrightarrow{\mathbf{a}}(t)=\frac{d \overrightarrow{\mathbf{v}}(t)}{d t}=r \frac{d^{2} \theta(t)}{d t^{2}} \hat{\boldsymbol{\theta}}(t)+r \frac{d \theta(t)}{d t} \frac{d \hat{\boldsymbol{\theta}}(t)}{d t} \nonumber$ $\overrightarrow{\mathbf{a}}(t)=r \frac{d^{2} \theta(t)}{d t^{2}} \hat{\boldsymbol{\theta}}(t)+r \frac{d \theta(t)}{d t}\left(-\cos \theta(t) \frac{d \theta(t)}{d t} \hat{\mathbf{i}}-\sin \theta(t) \frac{d \theta(t)}{d t} \hat{\mathbf{j}}\right) \nonumber$

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