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NEET Sample Paper NEET Sample Test Paper-11

  • question_answer
    A wheel has angular acceleration of \[3.0\text{ }rad/{{s}^{2}}\]and an initial angular speed of 2.00 rad/s. In a time of 2 s it has rotated through an angle (in radian) of

    A)  6                                

    B)  10

    C)  12                               

    D)  4

    Correct Answer: B

    Solution :

     Using\[\theta ={{\omega }_{0}}t+\frac{1}{2}\alpha {{t}^{2}}\]                                    ?.(ii) Given,\[\alpha =3.0\,rad/{{s}^{2}},{{\omega }_{0}}=2.0\,rad/s,t=2s\] Hence, \[\theta =2\times 2+\frac{1}{2}\times 3\times {{(2)}^{2}}\] or \[\theta =4+6=10\,rad\]


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