The paper analyzes the motion of idealized spherical homogeneous fertilizer particle along the straight vane attached to flat rotating disc. The analysis, based on the assumption on the pure rolling of the particle along the vane (without sliding), has been performed in the non-inertial reference coordinate system, which rotates together with the spreader disk. The particle motion along the vane is described by hyperbolic cosine function, which is the solution of the ordinary in-homogenous secondorder differential equation having constant coefficients. Solution of this kind represents an approximation of the real motion of fertilizer particle along the radial vane fixed to horizontal disc rotating at constant angular velocity. However, it can be very useful for optimization of centrifugal spreader design and working parameters, as well as for further analysis of the whole fertilizer spreading process that also includes particle flight.
The global financial crisis hit the Serbian economy severely in late 2008.
The subsequent decade has been characterized by negative or very modest
economic growth and Serbia is now just slightly above the development level
of ten years ago. This paper analyses the most important economic milestones
during this decade and investigates why only modest progress has been made,
despite various measures implemented by the Serbian government. It examines
the background to Serbia?s delayed transition and analyses the effects of
the global economic crisis on the Serbian economy. It outlines the policy
responses and their results, focusing on public finance, foreign trade,
reindustrialisation, FDI, the labour market, and sources of growth. The
paper sets out the key challenges to accelerating Serbia?s economic growth
and identifies the main elements of a new long-term development strategy.
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