English Dictionary

kinetic energy

noun

(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.

The roller coaster gains kinetic energy as it goes down the hill.

意味（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.

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.