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

  • question_answer
    A car of mass 800 kg moves on a circular track of radius 40 m. If the coefficient of friction is 0.5, then maximum velocity with which the car can move is                       [MH CET 2004]

    A)             7 m/s  

    B)             14 m/s

    C)                 8 m/s      

    D)                 12 m/s

    Correct Answer: B

    Solution :

                    \[{{v}_{\max .}}=\sqrt{\mu rg}\]\[=\sqrt{0.5\times 40\times 9.8}=14\,m/s\]


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