  We introduce a simplified model of magnetic friction, and investigate its
behavior using both numerical and analytical methods. When resistance
coefficient $\gamma$ is large, the movement of the system obeys the thermally
activated process. In contrast, when $\gamma$ is sufficiently small, the slip
and stick states behave as separate metastable states, and the lattice velocity
depends on the probability that the slip state appears. We evaluate the
velocities in both cases using several approximations and compare the results
with those of numerical simulations.
