Magnitude of frictional force after perfect rolling begins, Mechanical Engineering

What is the magnitude of frictional force after perfect rolling begins and why?

solution) After pure rolling begins,frictional force is 0.

This is because the velocity of he contact point is 0 in case of pure rolling.

Since there is no velocity at the contact,there is no friction

Posted Date: 3/26/2013 1:01:57 AM | Location : United States







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