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

  • question_answer
    In a bicycle, the radius of rear wheel is twice the radius of front wheel. It \[{{r}_{f}}\]and \[{{r}_{r}}\] are the radii and \[{{v}_{f}}\] and \[{{v}_{r}}\] are the speeds of topmost points of wheels then

    A) \[{{v}_{r}}=2{{v}_{f}}\]

    B) \[{{v}_{f}}=2{{v}_{r}}\]

    C) \[{{v}_{f}}={{v}_{r}}\]

    D) \[{{v}_{f}}=4{{v}_{r}}\]

    Correct Answer: C

    Solution :

    [c] The velocity of top point of the wheel is twice that of centre of mass. And the speed of centre of mass is same for both the wheels, \[[v=\omega r]\]


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