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KVPY Sample Paper KVPY Stream-SX Model Paper-11

  • question_answer
    Two identical trains are moving on rails along the equator on earth in opposite directions with the same speed. The pressure exerted on rails will be:

    A) Same for both

    B) zero for both

    C) More for train moving along the earth?s motion

    D) More for train moving opposite the earth's motion

    Correct Answer: D

    Solution :

    \[{{W}_{1}}=W\left( 1-\frac{2{{\omega }_{e}}v}{g} \right),\] When train moves opposite and \[{{W}_{2}}=W\left( 1+\frac{2{{\omega }_{e}}v}{g} \right),\] When train moves opposite of rotation.


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