Lagrangian Geometrical Model of the Rheonomic Mechanical Systems Year: 2011 Volume: 5 Issue: 1 17 - 23 Pages Authors: Camelia Frigioiu Katica (Stevanovic) Hedrih Iulian Gabriel Birsan Abstract: In this paper we study the rheonomic mechanical systems from the point of view of Lagrange geometry, by means of its canonical semispray. We present an example of the constraint motion of a material point, in the rheonomic case. Keywords: Lagrange's equations mechanical system non-linear connection rheonomic Lagrange space.