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NTSE Sample Paper NTSE SAT Practice Test-7

  • question_answer
    The two ends of a train moving with a constant acceleration pass a certain point with velocities u and v. The velocity with which the middle point of train passes the same point is    

    A) \[\frac{u+v}{2}\]          

    B)        \[\frac{{{u}^{2}}+{{v}^{2}}}{2}\]

    C) \[\sqrt{\left( \frac{{{u}^{2}}+{{v}^{2}}}{2} \right)}\]  

    D) \[\sqrt{{{u}^{2}}+{{v}^{2}}}\]

    Correct Answer: C

    Solution :

    [c] Take u as initial velocity, v as final velocity and \[{{v}_{1}}\] as the velocity of mid-point and proceed as question 23.           


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