Solution 8.8b
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(New page: We must find the position of the particle after 30 s. Using <math>\mathbf{r}=\mathbf{u}t+\frac{1}{2}\mathbf{a}{{t}^{\ 2}}+{{\mathbf{r}}_{0}}</math> with <math>\ \mathbf{a}=\mathbf{i}+2\...)
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Revision as of 15:18, 18 April 2010
We must find the position of the particle after 30 s.
Using \displaystyle \mathbf{r}=\mathbf{u}t+\frac{1}{2}\mathbf{a}{{t}^{\ 2}}+{{\mathbf{r}}_{0}} with \displaystyle \ \mathbf{a}=\mathbf{i}+2\mathbf{j} \text{ m}{{\text{s}}^{\text{-2}}}, \displaystyle \ \mathbf{u}= and \displaystyle {{\mathbf{r}}_{0}}=0 gives,
\displaystyle \mathbf{r}=\mathbf{u}t+\frac{1}{2}\mathbf{a}{{t}^{\ 2}}+{{\mathbf{r}}_{0}}