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• (cur) (last) 12:12, 4 October 2010 Ian (Talk | contribs) (275 bytes) (New page: In this case there is resistance to the motion. Energy at start = Energy lost + Energy and finish. <math>\begin{align} & 40\times 9 \textrm{.}8\times 12=\text{Energy Lost }+\frac{1}{2}\t...)

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