?The position function for a particle is \(\mathbf{r}(t)=a \cos (\omega t) \mathbf{i}+b
Chapter 3, Problem 113(choose chapter or problem)
The position function for a particle is \(\mathbf{r}(t)=a \cos (\omega t) \mathbf{i}+b \sin (\omega t) \mathbf{j}\). Find the unit tangent vector and the unit normal vector at \(t\)=0.
Text Transcription:
\mathbf{r}(t)=a \cos (\omega t) \mathbf{i}+b \sin (\omega t) \mathbf{j}
\(t\)=0
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