Answer: In 716, r(t) is the position vector of a moving particle. Find the tangential
Chapter 9, Problem 15(choose chapter or problem)
In Problems 7-16, r(t) is the position vector of a moving particle. Find the tangential and normal components of the acceleration at any t.
\(\mathbf{r}(t)=e^{-t}(\mathbf{i}+\mathbf{j}+\mathbf{k})\)
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