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• (cur) (last) 19:19, 1 September 2010 Ian (Talk | contribs) (209 bytes) (New page: Taking moments about the edge of the quay gives: <math>\begin{align} & 1\times 60\times 9\textrm{.}8=1\textrm{.}5\times m\times 9\textrm{.}8 \\ & m=\frac{60}{1\textrm{.}5}=40\text{ kg} \...)

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