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JEE Main & Advanced AIEEE Solved Paper-2011

  • question_answer
    A mass m hangs with the help of a string wrapped around a pulley on a frictionless bearing. The pulley has mass m and radius R. Assuming pulley to be a perfect uniform circular disc, the acceleration of the mass m, if the string does not slip on the pulley, is   AIEEE  Solved  Paper-2011

    A) \[\frac{g}{3}\]                                      

    B) \[\frac{3}{2}g\]

    C) g                                                

    D) \[\frac{2}{3}g\]

    Correct Answer: D

    Solution :

                 \[a=\frac{mg}{m+\frac{I}{{{R}^{2}}}}=\frac{mg}{m+\frac{m}{2}}=\frac{2g}{3}\]


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