  In this paper we continue the study of the derivation of different types of
kinetic equations which arise from scaling limits of interacting particle
systems. We began this study in \cite{NVW}. More precisely, we consider the
derivation of the kinetic equations for systems with long range interaction.
Particular emphasis is put on the fact that all the kinetic regimes can be
obtained approximating the dynamics of interacting particle systems, as well as
the dynamics of Rayleigh Gases, by a stochastic Langevin-type dynamics for a
single particle. We will present this approximation in detail and we will
obtain precise formulas for the diffusion and friction coefficients appearing
in the limit Fokker-Planck equation for the probability density of the tagged
particle $f\left( x,v,t\right)$, for three different classes of potentials. The
case of interaction potentials behaving as Coulombian potentials at large
distances will be considered in detail. In particular, we will discuss the
onset of the the so-called Coulombian logarithm.
