The disk A rolls without slipping on a horizontal surface. End B of bar BC is pinned to the edge of the disk A, and end C of the bar BC can slide freely along the horizontal surface. In addition, bar BC is pushed by the force P = mg. The sistem is initially at rest. Determine the aceleration of the center of the disk .A and the angular acceleration of bar BC immediately after the force P is applied if mA = mBC = m.
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