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Solution 18.3d

Revision as of 17:38, 6 October 2010 by Ian (Talk | contribs)

\displaystyle s=\frac{3\times {{5}^{2}}}{25}-\frac{{{5}^{3}}}{250}=3-0 \textrm{.}5=2 \textrm{.}5\text{ m}