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![[Post New]](/templates/default/images/icon_minipost_new.gif) 28 Feb 2008 20:24:09 IST
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dir of friction??? WELL IT DEPENDS .. if the body is rollin up or down and the rolin is pure then the dir of friction cant b determined coz its static friction if the rollin is not pure then the dir of friction is determined in the same way as in normal horizontal surface
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