9th Class Science Force and laws of motion Question Bank Force and Laws of Motion

  • question_answer
    It is easier to draw up wooden block along an inclined plane than have it up vertically, principally because

    A)  The friction is reduced

    B)  The mass becomes smaller

    C)  Only a part of weight has to be overcome  

    D)  g becomes smaller.

    Correct Answer: C

    Solution :

     On an inclined plane, the component of the weight, \[mg\cos \theta \] gets balanced by reaction. The component \[mg\sin \theta \] acting parallel to plane is only to be overcome.


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