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机车恒定功率运动模型来源于最普通的实际生活,并包含大量中学物理基本知识和方法,所以该模型是各种文献、测试卷甚至高考试卷中常见的模型,但是该模型的各物理量间的深层联系需用到高等数学知识,如不细究,往往会导致题设、求解结果等的不自洽,文章对该模型各物理量间的基本规律略作探究,并对几例相关高考试题等的科学性与自洽性进行讨论,希望对试题的命制有所裨益。
Locomotive constant power movement model comes from the most common real life and contains a large number of basic physics knowledge and methods, so the model is a variety of documents, test papers and even college entrance examination papers in the common model, but the model of physical depth Contact requires advanced knowledge of mathematics, such as not careful study, often lead to the title, the results of the solution is not self-consistent, the article of the model of the basic laws between the physical quantities of a little exploration, and several related college entrance examination and other science Sex and self-consistency of the discussion, I hope the test of the life of some benefit.