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

  • question_answer
    What happens to the centripetal acceleration of a revolving body if you double the orbital speed \[v\] and half the angular velocity \[\omega \]

    A)             The centripetal acceleration remains unchanged

    B)             The centripetal acceleration is halved

    C)             The centripetal acceleration is doubled

    D)             The centripetal acceleration is quadrupled

    Correct Answer: A

    Solution :

                    \[a=\frac{{{v}^{2}}}{r}=v\omega \] Þ \[{a}'=(2v)\,\left( \frac{\omega }{2} \right)=a\]i.e. remains constant.


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