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JEE Main & Advanced Physics Simple Harmonic Motion Question Bank Velocity of Simple Harmonic Motion

  • question_answer
    A body is executing simple harmonic motion with an angular frequency \[2rad/s\]. The velocity of the body at 20 mm displacement, when the amplitude of motion is 60 mm, is                            [Pb. CET 1996; Pb. PMT 1997; AFMC 1998;  CPMT 1999]

    A)            40 mm /s                               

    B)            \[60mm/s\]

    C)            \[113mm/s\]                        

    D)            \[120mm/s\]

    Correct Answer: C

    Solution :

               \[v=\omega \sqrt{({{a}^{2}}-{{y}^{2}})}=2\sqrt{{{60}^{2}}-{{20}^{2}}}\]\[=113\,mm/s\].


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