Third-law-of-motion
noun, Physics.
1.
See under law of motion.
law of motion
noun, Physics.
1.
any of three laws of classical mechanics, either the law that a body remains at rest or in motion with a constant velocity unless an external force acts on the body (first law of motion) the law that the sum of the forces acting on a body is equal to the product of the mass of the body and the acceleration produced by the forces, with motion in the direction of the resultant of the forces (second law of motion) or the law that for every force acting on a body, the body exerts a force having equal magnitude and the opposite direction along the same line of action as the original force (third law of motion or law of action and reaction)
Read Also:
- Third-law-of-thermodynamics
noun 1. See under law of thermodynamics (def 1). law of thermodynamics noun 1. any of three principles variously stated in equivalent forms, being the principle that the change of energy of a thermodynamic system is equal to the heat transferred minus the work done (first law of thermodynamics) the principle that no cyclic process […]
- Third lieutenant
third base
- Thirdly
adjective 1. next after the second; being the ordinal number for three. 2. being one of three equal parts. 3. Automotive. of, relating to, or operating at the gear transmission ratio at which the drive shaft speed is greater than that of second gear for a given engine crankshaft speed, but not as great as […]
- Third-man
noun 1. Cricket. the position of a fielder on the off side between slip and point. the fielder occupying this position. 2. Lacrosse. the position of a player, first in the line of defense between center and goal. the player occupying this position. noun 1. (cricket) a fielding position on the off side near the […]
- Third man argument
noun 1. (in the philosophy of Aristotle) the argument against the existence of Platonic Forms that since the Form of Man is itself a perfect man, a further form (the “third” man) would be required to explain this, and so ad infinitum