Cla.s.s 9 s.cien.ce chapter 9.
Force and Laws of Motion Intro.duction physics.
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In physics, the kinetic energy of an object is the energy that is possess 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 it speed changes
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