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JEE Main & Advanced Physics Two Dimensional Motion Question Bank Uniform Circular Motion

  • question_answer
    If the length of the second's hand in a stop clock is 3 cm the angular velocity and linear velocity of the tip is                                                 [Kerala PET 2005]          

    A)             0.2047 rad/sec., 0.0314 m/sec

    B)             0.2547 rad/sec., 0.314 m/sec

    C)                         0.1472 rad/sec., 0.06314 m/sec                      

    D)                         0.1047 rad/sec., 0.00314 m/sec            

    Correct Answer: D

    Solution :

                    \[\omega =\frac{2\pi }{T}=\frac{2\pi }{60}=0.1047\ rad/s\]             and \[v=\omega r=0.1047\times 3\times {{10}^{-2}}=0.00314\ m/s\]


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