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    Forces of Equilibrium - Drawbridge

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    The drawbridge BCD weighs 1000 lbs. Calculate:
    (a) the tension in the cable AC.
    (b) Dx and Dy and the resultant, D.

    (Please see attachment.)

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    Solution Preview

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    The drawbridge BCD weighs 1000 lb. Calculate:
    (a) the tension in the cable AC.
    (b) Dx and Dy and the resultant, D.

    Solution:

    From the free-Body diagram of bar BD
    The weight of the bar BD is 1000 lbs. line of action is 2.5 ft horizontally from D)=.

    At equilibrium the sum of moments around joint D is 0.0

    SUM of moments around D = weight of bar ...

    Solution Summary

    The solution is given step-by-step in an attachment.

    $2.49

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