Sebastiano Sonego and Massimo Pin 2005 Eur. J. Phys. 26 33 doi:10.1088/0143-0807/26/1/005
Sebastiano Sonego and Massimo Pin
Show affiliationsWe present a new derivation of the expressions for momentum and energy of a relativistic particle. In contrast to the procedures commonly adopted in textbooks, the one suggested here requires only knowledge of the composition law for velocities along one spatial dimension, and does not make use of the concept of relativistic mass, or of the formalism of 4-vectors. The basic ideas are very general and can be applied also to kinematics different from the Newtonian and Einstein ones, in order to construct the corresponding dynamics.
Issue 1 (January 2005)
Received 9 March 2004, in final form 25 June 2004
Published 26 October 2004
Sebastiano Sonego and Massimo Pin 2005 Eur. J. Phys. 26 33
J Mitroy and M W J Bromley 2003 J. Phys. B: At. Mol. Opt. Phys. 36 793
Thomas Wellens et al 2004 Rep. Prog. Phys. 67 45
D G Tyson and B R Jennings 1991 J. Phys. D: Appl. Phys. 24 645
Stephen M Merkowitz et al 2004 Class. Quantum Grav. 21 S603
Vadim V Cheianov and M B Zvonarev 2004 J. Phys. A: Math. Gen. 37 2261
S A Young 1987 J. Phys. E: Sci. Instrum. 20 403
K Ernst et al 2003 Semicond. Sci. Technol. 18 475
P P M Steur and M Durieux 1986 Metrologia 23 1
Yao Té et al 2003 Metrologia 40 24