Question: Water flows through a constant diameter pipe with a uniform velocity given by (mathbf{V}=(8 / t+5) hat{mathbf{j}} mathrm{m} / mathrm{s}), where (t) is in seconds.

Water flows through a constant diameter pipe with a uniform velocity given by $\mathbf{V}=(8 / t+5) \hat{\mathbf{j}} \mathrm{m} / \mathrm{s}$, where $t$ is in seconds. Determine the acceleration at time $t=1,2$, and $10 \mathrm{~s}$.

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