The curved arm BC and attached cables AB and AC support a power line which lies in the
Chapter 3, Problem 3/109(choose chapter or problem)
The curved arm BC and attached cables AB and AC support a power line which lies in the vertical y-z plane. The tangents to the power line at the insulator below A make \(15^{\circ}\) angles with the horizontal y-axis. If the tension in the power line at the insulator is 1.3 kN, calculate the total force supported by the bolt at D on the pole bracket. The weight of the arm BC can be neglected compared with the other forces, and it can be assumed that the bolt at E supports horizontal force only.
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