A flexible inextensible tape is wound around the cylinder, the mass of which can be neglected in comparison with the mass of the cylinder. The free end of the tape was attached to a bracket and the cylinder was allowed to descend by gravity. Determine the linear acceleration of the axis of the cylinder if the cylinder is solid.

A detailed solution with a brief note of the conditions, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
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