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Work-Energy Theorem

Definition of Work-Energy Theorem

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The work done on a rigid body by a net force changes the energy of the body.


W = Ekfinal - Ekinitial = (0.5)m(vfinal)2 - (0.5)m(vinitial)2


W = Fdcosø

 

When the energy of the body increases, work is positive.


 

Work-Energy Theorem in Physics Problems

 

Work-Energy Theorem Problems