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JEE Main & Advanced Physics Simple Harmonic Motion Question Bank Simple Pendulum

  • question_answer
    What is the velocity of the bob of a simple pendulum at its mean position, if it is able to rise to vertical height of 10cm (g = 9.8 m/s2)                                                                    [BHU 2000]

    A)            2.2 m/s

    B)            1.8 m/s

    C)            1.4 m/s

    D)            0.6 m/s

    Correct Answer: C

    Solution :

               According to the principle of conservation of energy,  \[\frac{1}{2}m{{v}^{2}}=mgh\] or \[v=\sqrt{2gh}=\sqrt{2\times 9.8\times 0.1}\]


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