Solution 8.4c
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(New page: We have <math>\mathbf{a}=4\mathbf{i}– 8\mathbf{j},\ \</math> <math>\mathbf{u}=4\mathbf{i}– 8\mathbf{j}\ \</math> and <math>\ \ \mathbf{ r}_{0}=6\mathbf{i}+2\mathbf{j}</math>. The ...)
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Revision as of 16:26, 13 April 2010
We have \displaystyle \mathbf{a}=4\mathbf{i}– 8\mathbf{j},\ \ \displaystyle \mathbf{u}=4\mathbf{i}– 8\mathbf{j}\ \ and \displaystyle \ \ \mathbf{ r}_{0}=6\mathbf{i}+2\mathbf{j}.
The most suitable equation to use is \displaystyle \mathbf{v}=\mathbf{u}+\mathbf{a}t\ \.
Substituting the above values gives a vector eqaution for \displaystyle t.
\displaystyle 4\textrm{.}8\mathbf{i}-6\textrm{.}8\mathbf{j}=4\mathbf{i}– 8\mathbf{j}+(4\mathbf{i}– 8\mathbf{j})t\ \
