Задача id16439

A load of mass m = 120 kg is kept in balance using a system of rods ABCD by a vertical thread DE attached to the floor (Fig. , a). Find the tension force of the thread if the rods have length AB = CD = 3 m; in addition, AK = 0.6 m, CL = 0.75 m. Neglect friction in the bearings.

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