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JEE Main & Advanced Physics Work, Energy, Power & Collision / कार्य, ऊर्जा और शक्ति Question Bank Work Done by Constant Force

  • question_answer
    It is easier to draw up a wooden block along an inclined plane than to haul it vertically, principally because [CPMT 1977; JIPMER 1997]

    A)             The friction is reduced

    B)             The mass becomes smaller

    C)             Only a part of the weight has to be overcome

    D)             ?g? becomes smaller

    Correct Answer: C

    Solution :

                    Opposing force in vertical pulling = mg But opposing force on an inclined plane is mg sinq, which is less than mg.


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