Define kinetic energy

Explanation:

Kinetic energy of an object is the energy that it possesses due to its motion.
It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.
Kinetic energy of an object of mass m traveling at a speed v is given as
K = 12mv2.
S.I. unit of kinetic energy is Joule (J) which is kg m2 s-2.
Final answer:
Kinetic energy of an object is the energy that it possesses due to its motion.