define kinetic energy &write an expression for it
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The International Standard Unit of Kinetic Energy is Joules(J). ( J = kg. MATHEMATICAL EXPRESSION FOR KINETIC ENEGRY. Kinetic Energy = 1/2 * m * where, m is the mass of the object and v is the velocity with which the object is moving.
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In physics, the 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.
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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