6 citations · 11 across the 3 of their papers we have counts for
4 papers
Relativistic relative velocities and relativistic acceleration
Grzegorz M. Koczan
It turns out that the standard application of the four-vector SR formalism does not include the concept of relative velocity. Only the absolute velocity is described by the four-ve…
Research on rolling friction's dependence on ball bearings' radius
Grzegorz M. Koczan, Juliusz Ziomek
There are two alternative historical laws of rolling resistance formulated by French scientist Coulomb and Dupuit. It has been decided to verify experimentally again, which of thes…
Unified anisotropic strength criterion rank two for fibrous materials like wood
Grzegorz Koczan, Paweł Kozakiewicz
Wood is a fibrous orthotropic material additionally characterized with sign-sensitivity. Thus, determining the universal conditions of its strength constitutes a complex task. In t…
Defining of three-dimensional acceleration and inertial mass leading to the simple form F=MA of relativistic motion equation
Grzegorz M. Koczan
Newton second law of dynamics is a law of motion but also a useful definition of force (F=MA) or inertial mass (M=F/A), assuming a definition of acceleration and parallelism of for…