Crank OA, rotating around axis O, sets in motion wheel 1 of radius R = 20 cm, rolling along the inner surface of stationary circle 2 (Fig. 14). Wheel 1, in contact with wheel 3 of radius r = 10 cm, causes it to rotate around axis O. (Wheel 3 is freely mounted on axis O and is not connected to crank OA.) How many times is the angular velocity of wheel 3 greater than the angular velocity of crank OA?
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