Railways Technical Ability Vibration Analysis Question Bank Vibration Analysis

  • question_answer If a mass 'm' oscillates on a spring having a mass   \[{{m}_{s}}\] and stiffness ?k?, then the natural frequency of the system is given by:

    A) \[\sqrt{\frac{k}{m+\frac{{{m}_{s}}}{3}}}\]                  

    B) \[\sqrt{\frac{k}{\frac{m}{3}+{{m}_{s}}}}\]

    C) \[\sqrt{\frac{3k}{m+{{m}_{s}}}}\]                   

    D) \[\sqrt{\frac{k}{m+{{m}_{s}}}}\]

    Correct Answer: A

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