Задача id8840

Gear 1, under the influence of torque M, drives gear 2 (Fig. 36). Gear 2 is rigidly connected to pulley 3, on which a thread is wound, carrying a load m. The gears, pulley and thread are weightless; there is no friction. Find the acceleration of the load, knowing that the radii of the gears are equal to R1 and R2 and the radius of the pulley is equal to r.

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