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Math Help - Periods of Vibration

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    Periods of Vibration

    The period of vibration, P, for a pendulum varies directly as the square root of the length L. If P is 2 seconds when L is 64 inches, what is the period when the length is 16 inches?
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    Quote Originally Posted by Mike9182 View Post
    The period of vibration, P, for a pendulum varies directly as the square root of the length L. If P is 2 seconds when L is 64 inches, what is the period when the length is 16 inches?
    P = k\sqrt{L} , where k is the constant of proportionality.

    2 = k\sqrt{64}

    solve for k , then determine P for L = 16
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