UNIVERSITY PHYSICS I CHAPTER 8 Work, Energy and The CWe Theorem §8.1 Work done by variable force 1. Why we introduce the concepts of work and energy? F total=ma CWE theorem CWE theorem Conservation of energy (More universal) 2. About the systems that we discuss Ignore the size, internal structure, internal motion, deformations, and thermal effects.1 1. Why we introduce the concepts of work and energy? F ma CWE theorem r r total = CWE theorem Conservation of energy (More universal) 2. About the systems that we discuss Ignore the size, internal structure, internal motion, deformations, and thermal effects. §8.1 Work done by variable force