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    Question

    Which of the following statements is/are correct about

    friction? A. Friction can be entirely eliminated on any surface. B. Rolling reduces friction. C. Sliding friction is smaller than the rolling friction. Choose the correct answer from the codes given below:
    A Only A and C are correct Correct Answer Incorrect Answer
    B Only B and C are correct Correct Answer Incorrect Answer
    C Only B is correct Correct Answer Incorrect Answer
    D Only A and B are correct Correct Answer Incorrect Answer

    Solution

    Friction can be reduced but it can never be eliminated completely. In rolling friction, the surface contact is less which results in less friction. Rolling friction is less than the sliding friction

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