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WB JEE Medical WB JEE Medical Solved Paper-2008

  • question_answer
    A pellet of mass 1 g is moving with an angular velocity of 1 rad/s along a circle of radius 1 m  the centrifugal force is

    A)  0.1 dyne             

    B)  1 dyne

    C)  10 dyne              

    D)  100 dyne

    Correct Answer: D

    Solution :

                     Given that \[m=1\times {{10}^{-3}}kg;\,\omega =1\,rad/s\]and \[r=1\,m\] Hence, centrifugal force \[=m{{\omega }^{2}}r={{10}^{-3}}N\] \[1\,N={{10}^{5}}\,\text{dyne}\] \[1\,N={{10}^{5}}\,\text{dyne}\] \[\therefore \]  Centrifugal force = 100 dyne


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