JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2015

  • question_answer
    Three blocks are placed at rest on a smooth inclined plane. Find the contact force between \[\frac{3}{\sqrt{2}}\] and \[\frac{45}{8}km/h\].

    A) \[\frac{25}{4}km/h\]

    B) \[5km/h\]

    C) \[\frac{30}{4}km/h\]

    D) None of the above

    Correct Answer: A

    Solution :

    Acceleration of the system, \[n=\frac{It}{e}=\frac{3.2\times {{10}^{-3}}\times 1}{1.6\times {{10}^{19}}}\] \[=2\times {{10}^{16}}\] Equation of motion for \[{{V}_{0}}=\frac{{{K}_{\max }}}{e}=\frac{4eV}{e}\] \[=4V\] \[{{f}_{o}}+{{f}_{e}}=44cm\] \[m=\frac{{{f}_{o}}}{{{f}_{e}}}=10\,\,OR\,\,{{f}_{0}}=10{{f}_{e}}\] \[10{{f}_{e}}+{{f}_{e}}=44cm\,\,\,OR\,\,{{f}_{e}}=4cm\]


You need to login to perform this action.
You will be redirected in 3 sec spinner