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在人教版高中《物理》第一册(必修)第七章第六节“机械能守恒定律”一节的练习五第(1)题的第e种情况(第130面)是这样的:“用细绳拴着一个小球,使小球在光滑的水平面上做匀速圆周运动。”问该过程中小球机械能守恒吗?
In the first e-book (Part 130) of Exercise Five (1) of the first section of the People’s Education Press “Physics” (Compulsory), Chapter 7, “Conservation of Mechanical Energy”, this is: “ Use a string to hold a small ball, so that the ball in a smooth horizontal surface in a uniform circular motion. "Ask the ball in the process of mechanical energy conservation?