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JIPMER Jipmer Medical Solved Paper-2007

  • question_answer
    A force Facting on an object varies with distance x as shown here. The force is in newton and distance is in meter. The work done by the force in moving the object from x = 0 to x = 6 m is

    A) 4.5 J                                      

    B) 13.5 J    

    C) 9.0 J                      

    D)        18.0 J

    Correct Answer: B

    Solution :

                    Key Idea: The work done wilt be the area of the F-x graph. Work done in moving the object from \[x=0\]to \[x=6\,m\] m is given by W = area of rectangle + area of triangle      \[=3\times 3+\frac{1}{2}\times 3\times 3\]      \[=9+4.5=13.5\,J\]


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