30. The horizontal table can roll without sliding cylinder of mass m, which is wound thread. To the free end of the thread, thrown over the light unit is suspended from the load of the same mass m. The system itself provided. Find the acceleration of the load and the frictional force between the cylinder and the table. The problem to solve for hollow and solid cylinders.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)