NEET Sample Paper NEET Sample Test Paper-9

  • question_answer An inclined plane makes an angle of \[{{30}^{o}}\] with the horizontal. A solid sphere rolling down this inclined plane from rest without slipping has a linear acceleration equal to:

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

    B)  \[\frac{5g}{7}\]

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

    D)  \[\frac{5g}{14}\]

    Correct Answer: D

    Solution :

    As the popular formula for acceleration of the rolling bodies on an inclined plane, is \[a=\frac{g\,\sin \theta }{\left( 1+\frac{1}{m{{R}^{2}}} \right)}=\frac{g\sin {{30}^{o}}}{\left( 1+\frac{2}{5} \right)}=\frac{5}{14}g\]

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