Question

What is kinetic energy ,real meaning

Answer 1

Kinetic energy is the energy of motion, observable as the movement of an object, particle, or set of particles. ... Objects that are not in motion possess potential energy(the other main type of energy), which is converted to kinetic energy when some force , such as gravity , acts upon the object to set it in motion.
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Answer 2

The energy of a body possessed by virtue of its motion is know as kinetic energy..
The kinetic energy of a body at rest is zero because it is not in motion

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