SSC General Science & Technology Sample Paper NCERT Sample Paper-2

  • question_answer
    It is easier to roll a barrel than to pull it because:

    A)  The surface are of the barrel in contact with the-road is more in the case of pulling

    B)  Rolling friction is much less than sliding friction

    C)  Of a reason other than those mentioned

    D)  The full weight of the barrel comes into play when it is pulled

    Correct Answer: B

    Solution :

    [b] Rolling friction is less than kinetic friction, therefore less resistance is faced by the barrel while rolling.


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