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NEET Sample Paper NEET Sample Test Paper-23

  • question_answer
    In the given figure a sphere of radius 2 m rolls on a plank. The accelerations of the sphere and the plank are indicated. The value of the angular acceleration a of the sphere is

    A) \[2\,rad/{{s}^{2}}\]                         

    B) \[4\,rad/{{s}^{2}}\]

    C) \[~3\,rad/{{s}^{2}}\]                      

    D) \[1\,rad/{{s}^{2}}\]

    Correct Answer: C

    Solution :

    For No slip condition\[{{a}_{1}}=Ra-{{a}_{2}}\Rightarrow 2=2a-4\]\[\alpha =3rad/{{s}^{2}}.\] Hence, the correction option is [c].


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