8. Andrzej Horzela, Edward Kapuścik, Jaroslaw Kempczyński, The Relativistic Invariant and the Galilean Mass of Bodies

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Volume 6: Pages 536-539, 1993

The Relativistic Invariant and the Galilean Mass of Bodies

Andrzej Horzela 1, Edward Kapuścik 1,2, Jaroslaw Kempczyński 1

1Department of Theoretical Physics, H. Niewodniczański Institute of Nuclear Physics, ul. Radzikowskiego 152, 31‐342 Kraków Poland

2Department of Foundations of Physics, Cracow Pedagogical University, ul. Podchorążych 2, 30‐084 Kraków, Poland

We generalize the concept of Galilean mass to the relativistic case. In the case of the inequality of Galilean and inertial masses, we calculate the relativistic invariant being constant along the trajectory of the moving body. This enables us to define an invariant measure of inertia of bodies.

Keywords: classical mechanics, special relativity, Galilean mass

Received: March 5, 1992; Published Online: December 15, 2008