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

  • question_answer
    A particle of mass \[m\] is executing uniform circular motion on a path of radius \[r\]. If \[p\] is the magnitude of its linear momentum. The radial force acting on the particle is                                     [MP PET 1994]

    A)             \[pmr\]

    B)             \[\frac{rm}{p}\]

    C)             \[\frac{m{{p}^{2}}}{r}\]    

    D)             \[\frac{{{p}^{2}}}{rm}\]

    Correct Answer: D

    Solution :

                    Radial force \[=\frac{m{{v}^{2}}}{r}=\frac{m}{r}{{\left( \frac{p}{m} \right)}^{2}}=\frac{{{p}^{2}}}{mr}\] [As p = mv]


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