| 摩擦力作功的一个佯谬 |
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| 引用本文： | 吴泽庆.摩擦力作功的一个佯谬[J].南京晓庄学院学报,1999(4). |
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| 作者姓名： | 吴泽庆 |
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| 作者单位： | 扬州电大!扬州，225002 |
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| 摘 要： | 运动的汽车,受着地面给它的摩擦力作用,并在摩擦力作用下沿摩擦力的方向运动了一段位移。摩擦力对运动的汽车是否作功？本文从体动力角度和功的定义这一基本概念出发,分析了摩擦力对运动的汽车并不作功,但摩擦力却起到将汽车发动机中的内能转化为运动汽车的动能的作用。
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| 关 键 词： | 摩擦力 功 力偶矩 |
A Feint Mistake, the Work Done by Friction |
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| Wu Qingze.A Feint Mistake, the Work Done by Friction[J].Journal of Nanjing Xiaozhuang College,1999(4). |
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| Authors: | Wu Qingze |
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| Abstract: | A moving car,acted by the friction on the ground,makes a displacement in the direction of the friction.Has the friction done any work to the moving car? According to the rigid dody mechanics and the definition of work, the author's answer is negative. But, in the author's opinion the friction changes the intemal eneng in the car engine into the dynforc eneng which moves the car. |
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| Keywords: | friction work couple distance |
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