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

  • question_answer
    A car is moving on a circular path and takes a turn. If \[{{R}_{1}}\] and \[{{R}_{2}}\]  be the reactions on the inner and outer wheels respectively, then                                 [MH CET (Med.) 2001]

    A)             \[{{R}_{1}}={{R}_{2}}\]  

    B)             \[{{R}_{1}}<{{R}_{2}}\]

    C)             \[{{R}_{1}}>{{R}_{2}}\]

    D)                      \[{{R}_{1}}\ge {{R}_{2}}\]

    Correct Answer: B

    Solution :

                    Reaction on inner wheel  \[{{R}_{1}}=\frac{1}{2}M\left[ g-\frac{{{v}^{2}}h}{ra} \right]\] Reaction on outer wheel \[{{R}_{2}}=\frac{1}{2}M\left[ g+\frac{{{v}^{2}}h}{ra} \right]\] where, r = radius of circular path, 2a = distance between two wheels and h = height of centre of gravity of car.


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