kinetic energy

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English

Noun

kinetic energy (countable and uncountable, plural kinetic energies)

  1. (physics) The energy possessed by an object because of its motion, equal (nonrelativistically) to one half the mass of the body times the square of its speed.
    • 1959 March, “The 2,500 h.p. electric locomotives for the Kent Coast electrification”, in Trains Illustrated, page 123:
      As on Nos. 20001-3, the motor and generator armature shafts of the new locomotive each carry a heavy flywheel to provide kinetic energy and help maintain the speed of the motor-generator set during interruptions of supply, as at breaks in the continuity of the conductor rail.
  2. Energetic fast-paced activity.
    • 2023 March 14, Caryn James, “John Wick: Chapter 4: 'Soars above most action films'”, in BBC‎:
      Reeves' action moves and his sincerity, even when Wick is at his most stern, perfectly capture the blend of emotion and kinetic energy that define the films.

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