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JEE Main & Advanced Physics Work, Energy, Power & Collision / कार्य, ऊर्जा और शक्ति Question Bank Graphical Questions

  • question_answer
    The relationship between force and position is shown in the figure given (in one dimensional case). The work done by the force in displacing a body from x = 1 cm  to x = 5 cm is                                 [CPMT 1976]

    A)             20 ergs

    B)                           60 ergs          

    C)                         70 ergs            

    D)                         700 ergs

    Correct Answer: A

    Solution :

                    Work done = area between the graph and position axis             \[W=10\times 1+20\times 1-20\times 1+10\times 1=20\,erg\]


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