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JIPMER Jipmer Medical Solved Paper-2012

  • question_answer
    A boy on a cycle pedals around a circle of 20 metres radius at a speed of 20 m/s. The angle, combined mass of the body and the cycle makes with the vertical so that it may not fall, is (g = 9.8 \[m\text{/}{{s}^{2}}\])

    A)  \[60.25{}^\circ \]

    B)                         \[63.90{}^\circ \]

    C)  \[26.12{}^\circ \]           

    D)         \[30.00{}^\circ \]

    Correct Answer: B

    Solution :

    Angle made by cyclist with vertical is\[\theta \]. Then, \[\tan \,(\theta )=\frac{{{v}^{2}}}{rg}=\frac{{{(20)}^{2}}}{20\times 9.8}=\frac{20}{9.8}\] \[\theta ={{\tan }^{-1}}(2.04)=63.7{}^\circ C.\]


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