Equation of motion of a point like test body and post-Newtonian approximation in the projective unified field theory

The equation of motion of a point-like test body is derived from the field equations of Projective Unified Field Theory. We studied this equation of motion with respect to a potential violation of the equivalence principle. The Newtonian and the post-Newtonian approximations of the field equations and of the equation of motion of a test body are studied in detail. In analyzing some experimental data we performed some numeric estimates of the ratio of the inertial mass to the scalaric mass of matter. (author)