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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
    You lift a heavy book from the floor of the room and keep it in the book-shelf having a height 2 m. In this process you take 5 seconds. The work done by you will depend upon [MP PET 1993]

    A)             Mass of the book and time taken

    B)             Weight of the book and height of the book-shelf

    C)             Height of the book-shelf and time taken

    D)             Mass of the book, height of the book-shelf and time taken

    Correct Answer: B

    Solution :

                    Work done = Force × displacement = Weight of the book × Height of the book shelf


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