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Solution 18.8b

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Ian (Talk | contribs)
(New page: <math>\begin{align} & \mathbf{v}=\frac{d\mathbf{r}}{dt}=\left( 2-\frac{t}{5} \right)\mathbf{i}+2\mathbf{j} \\ & v=\sqrt{{{\left( 2-\frac{t}{5} \right)}^{2}}+{{2}^{2}}}=\sqrt{4-\frac{4t}{5...)
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Revision as of 18:42, 8 October 2010

v=dtdr=2−t5i+2jv=2−t52+22=4−54t+t225 

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