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Definition of Work-Energy Theorem
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