what is kinetic energy ? Derive the expression of kinectic energy
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The kinetic energy of a body is the energy that it possessed due to its motion. Kinetic energy can be defined as the work needed to accelerate an object of a given mass from rest to its stated velocity. The derivation of kinetic energy is one of the most common questions asked in the examination.
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energy which a body possesses by virtue of being in motion.
"energy above that needed to ionize the molecule is carried away as kinetic energy of the electron ejected"
Suppose a body of mass m is moving with velocity v. It is brought to rest by applying a retarding force F. Suppose it traverses a distance s before coming to rest. Kinetic energy of body, KE = Work done by retarding force to stop it.
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