Two loads, the masses of which are equal to m1 = 1.5 kg and m2 = 0.5 kg, are connected by a weightless thread thrown over a block, which is a homogeneous disk with mass m3 = 1 kg. Determine the acceleration a with which the loads are moving.

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.
If you have any questions about the solution, write. I try to help.