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• (cur) (last) 16:23, 21 March 2010 Ian (Talk | contribs) (445 bytes) (New page: The normal force <math>R</math> is equal to the weight <math>mg</math> of the sledge. Thus <math>R=mg=117 \textrm{.}6\ \text{N}</math>. The maximum frictional force is <math>F=\mu R</ma...)

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