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Abstract


About Inertial Frames of Reference, Velocities, and Velocity-Dependent Masses

Georg Galeczki
Year: 1989
Keywords: Reference Frames, Velocity, Mass
  1. Inertial Frames of Reference: The concept of inertial frame of reference (IFR is usually tied to Galileo's "law of inertia" or to "Newton's first principle": "A body remains at rest or in motion with constant velocity if and only if it is not subjected to the influence of other bodies".
  2. Velocities: The concept of velocity arounsed no difficulties in Newtonian physics. Once length and time intervals defined in terms of conventional units, velocity was defined as the limit.
  3. Velocity Dependent Masses: Mass is defined as the proportionality factor between the first dynamic quantity, the linear momentum p, and the velocity v (or w? or else?) - a purely kinematic quantity.