Question: A forensic anthropologist uses 3D scanning data to model the trajectory of a broken bone fragment as a vector path $\mathbf{r}(t) = \langle t^2, \ln(t), e^{-t} \rangle$ for $t > 0$. At $t = 1$, find the magnitude of the velocity vector $\|\mathbf{r}'(1)\|$.

Mon, 04 May 2026 07:43:45 +0000

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