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Revision as of 17:46, 10 October 2010 (edit) Ian (Talk | contribs) (New page: <math>\begin{align} & s(15)=\int_{0}^{15}{v}dt \\ & \\ & =\int_{0}^{15}{( t-\frac{{{t}^{2}}}{30} )dt} \\ & \\ & =\left[ \frac{{{t}^{2}}}{2}-\frac{{{t}^{3}}}{90} \right]_{0}^{15} \\ & ...) ← Previous diff		Current revision (09:35, 11 October 2010) (edit) (undo) Ian (Talk | contribs)
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		+	Using the result for the velocity obtained in part a)
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	<math>\begin{align}		<math>\begin{align}
	& s(15)=\int_{0}^{15}{v}dt \\		& s(15)=\int_{0}^{15}{v}dt \\

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Current revision

Using the result for the velocity obtained in part a)

\displaystyle \begin{align} & s(15)=\int_{0}^{15}{v}dt \\ & \\ & =\int_{0}^{15}{( t-\frac{{{t}^{2}}}{30} )dt} \\ & \\ & =\left[ \frac{{{t}^{2}}}{2}-\frac{{{t}^{3}}}{90} \right]_{0}^{15} \\ & \\ & =\left( \frac{{{15}^{2}}}{2}-\frac{{{15}^{3}}}{90} \right)-0 \\ & \\ & =75\text{ m} \end{align}