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Ask iit jee aieee pet cbse icse state board community Discussion Response Post to: rollin motion
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sidsgr88 (84)

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Olaaa!! Perrrfect answer. 14  [21 rates]

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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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