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[Post New]20 Jun 2008 15:56:41 IST
    Subject: while riding bicycle on which wheel friction acts in bwd or fwd direction & explain why
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ganesha1991 (1700)

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the front wheel performs translatory motion
so the friction is backwards

now when we peddal that torque produced is used to rotate the wheel in clockwise
and we know friction opposes motion so its direction is forward this time
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