# Solution B65 D3 (Figure 6 condition 5) termehu Targ 1989

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# Description

The task of teormeh of Targa SM D3 B65. Conditions of the problem: The mechanical system consists of D1 cargo weight m1 = 2 kg and D2 mass m2 = 6 kg and vertical slabs of a rectangular mass m3 = 12 kg, moving along the horizontal guides (Fig. D3.0 - D3.9, Table. D3 ). At time t0 = 0, when the system is at rest under the action of internal forces begin to move goods through the channels, which is a circle of radius r = 0,4 m and R = 0,8 m. The angle of the movement of goods fi1 = ∟A1C3D1 changes legally fi1 = f1 (t), and the angle fi2 = ∟A2C3D2 - legally fi2 = f2 (t). Table. DZ these relationships are given separately for rice. 0-4 and 5-9, where phi is expressed in radians, t - in seconds. Assuming loads of material point and ignoring all resistances, determine the variation over time, the value shown in the table under "Find" t. E. X3 = t3 (t) and N = f (t), where x3 - coordinate of the center plate C3 (dependence x3 = f3 (t) defines the law of motion of the plate), N - normal reaction complete guide.