A thread is attached to the pulley of the Oberbeck cross (figure), from which a load of mass M = 1 kg is suspended. The load is lowered from a height of h = 1 m to the bottom position, and then begins to rise. At this time, a “jerk” occurs, i.e. increasing thread tension. Find the tension of the thread T when lowering or raising the load, and also approximately estimate the tension during the jerk Triv, pulley radius r = 3 cm. Four weights of mass m = 250 g each are attached to the cross at a distance R = 30 cm from its axis. The moment of inertia itself

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