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[Post New]25 Mar 2008 16:21:29 IST
    Subject: Re:rolling friction how is it different from other friction
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destinationIIT09 (329)

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Quite often rolling friction is negligible compared 2 static or kinetic friction present simultaneously..
eg:To reduce friction small ball bearings {steel balls} are kept b/w the rotating parts of a machine. wen ball bearings are used,as one part move with respect 2 another,the ball rolls on the two parts..no kinetic friction is involved and rolling friction being much less causes less energy loss due 2 friction resulting in easier work
 
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