Work, Energy, and Power
摘要
Work , energy , and power are words that have different meanings in our everyday life. Nevertheless, physicists give them specific definitions, which we present in this chapter. The work-energypower approach provides identical results to those obtained by Newtonian mechanics, but usually with simpler analysis, especially when dealing with complex situations where for ces are not constant. Therefore, we will introduce two extremely important concepts: the work-energy-theoremand conservation of energy.