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JEE Main & Advanced Physics Rotational Motion Question Bank Self Evaluation Test - System of Particles Rotational Motion

  • question_answer
    A wheel rotates with a constant acceleration of 2.0 radian/sec2. If the wheel starts from rest, the number of revolutions it makes in the first ten seconds will be approximately

    A) 8

    B) 16   

    C) 24

    D) 32

    Correct Answer: B

    Solution :

    [b] \[\theta ={{\omega }_{0}}t+\frac{1}{2}\alpha {{t}^{2}}\Rightarrow \theta =100rad\] \[\therefore \]  Number of revolutions\[=\frac{100}{2\pi }=16\] (approx.)


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