Physics: Kinetic energy

Wikimedia Commons, CC BY-SA

Kinetic energy Form: KE = ½mv² In physics, the kinetic energy of an object is the form of energy that it possesses due to its motion.

Commentary

Kinetic energy Form: KE = ½mv² In physics, the kinetic energy of an object is the form of energy that it possesses due to its motion. What Kinetic energy means This equation relates fundamental physical quantities. Every time physicists apply this formula, they're building on a breakthrough that tra nsformed how we understand reality. Deep dive: Kinetic energy KE = ½mv² In physics, the kinetic energy of an object is the form of energy that it possesses due to its motion. In classical mechanics, the kinetic energy of a non-rotating object of mass m traveling at a speed v is 1 2 m v 2 {\textstyle {\frac {1}{2}}mv^{2}} . The kinetic energy of an object is equal to the work, or force (F) in the direction of motion times its displacement (s), needed to accelerate the object from rest to its given speed. The same amount of work is done by the object when decelerating from its current speed to a state of rest. The SI unit of energy is the joule, while the English unit of energy is the foot-pound. In relativistic mechanics, 1 2 m v 2 {\textstyle {\frac {1}{2}}mv^{2}} is a good approximation of kinetic energy only when v is much less than the speed of light.

Sources: Wikipedia