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Work energy theorem...

Answer» Kf-Ki=W [Kf=Final kinetic energy and Ki means initial kinetic energy,therefore,Kf-Ki=change in kinetic energy and it is equal to the work done;(W)].
Net work done on body = change in kinetic energy
According to the work-energy theorem, the net work on an object causes a change in the kinetic energy of the object. The formula for net work is net work = change in kinetic energy = final kinetic energy - initial kinetic energy.


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