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在牛顿第二定律教学中,学生往往有一种模糊认识,如下图所示,他们总认为在图示的两种情况下,物体A具有相同的加速度。
In Newton’s second law teaching, students often have a vague understanding. As shown in the following figure, they always think that in the two cases illustrated, the object A has the same acceleration.