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    Spring constant of bungee cord

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    "A 61.2 kg bungee jumper jumps from a bridge. She is tied to a 11.2 m long (unstretched) bungee cord and falls a total of 32.4 m. Calculate the spring constant k of the bungee cord."

    Here's how I approached this question:

    (1/2)(k)(x^2) = mgH
    k = 2mgH/x^2
    k = (2)(61.2)(9.8)(32.4)/11.2^2 = 309.8 N/m

    But this is not the right answer. Help!

    Thank you!

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    Solution Preview

    Though the formula you have applied is correct but the values you have put in ...

    Solution Summary

    The spring constant of a bungee cord is calculated.