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BCECE Medical BCECE Medical Solved Papers-2010

  • question_answer
    A 500 kg horse pulls a cart of mass 1500 kg along a level road with an acceleration of 1\[m/{{s}^{2}}\]. If the coefficient of sliding friction is 0.2, then the horizontal force exerted by the earth on the horse is

    A)  300kg-wt      

    B)  400 kg-wt

    C)  500 kg-wt      

    D)  600 kg-wt

    Correct Answer: D

    Solution :

    Here, \[F-{{f}_{k}}=ma\]                 \[F={{f}_{k}}+ma\]                 \[F=\mu mg+ma\]                 \[F=m\,(\mu g+a)\] \[\therefore \] \[F=(500+1500)\,(0.2\times 10+1)\]                 F = 6000 N \[f\] = 600 kg-wt


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