Chapter 8 Energy and Conservation Law 1. Work and Energy 2. Kinetic Energy(能)&work- Energy Principle 3. Conservative(保守) and Noncons Forces 4. Potential Energy(势能) 5. Conservation Snarav
1-1 Frame of Reference Particle(质点) 1. Frame of Reference(参照系) When we discuss the position and the velocity(速度)ofan object ,we must answer the o questions: