[en] The relaxation of plasma rotation in a tokamak in the presence of extraneous forces and corrugation of the magnetic field was investigated. The poloidal and toroidal plasma velocities that were established as a result of the competition of extraneous forces and longitudinal viscosity were calculated. It was demonstrated that under reactor-tokamak conditions the poloidal plasma velocity in the presence of extraneous forces remains at the level of the drift velocity. The toroidal velocity in a corrugated tokamak with longitudinal injection of fast neutrals was assessed and it was demonstrated that even with a slight corrugation it is small in comparison with the thermal velocity of the ions