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Co-efficient of rolling friction is _______________ than co-efficient of sliding friction.

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in Machine Kinematics by (38.0k points)
Co-efficient of rolling friction is _______________ than co-efficient of sliding friction.

(a) greater

(b) equal to

(c) lesser

(d) none of the mentioned

I got this question in a job interview.

This intriguing question comes from Types of Friction topic in section Friction of Machine Kinematics

1 Answer

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by (106k points)
Right answer is (c) lesser

Explanation: For the same pair of surfaces, co-efficient of rolling friction is lesser than co-efficient of sliding friction.

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