J & K CET Engineering J and K - CET Engineering Solved Paper-2006

  • question_answer
    A T Joint is formed by  two identical rods A and B each of mass m and length L in the XY plane as shown. Its moment  of inertia about axis coinciding  with A is

    A)  \[\frac{2\,m{{L}^{2}}}{3}\]

    B)  \[\frac{\,m{{L}^{2}}}{12}\]

    C)  \[\frac{\,m{{L}^{2}}}{6}\]

    D)  None of these

    Correct Answer: C

    Solution :

    \[I={{I}_{x}}+{{I}_{y}}=\frac{m{{L}^{2}}}{12}+\frac{m{{L}^{2}}}{12}=\frac{m{{L}^{2}}}{6}\]


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