大部分同学认为在求功公式W=Fscosα中,位移s指的是物体运动的位移．实际上位移s理解为力的作用点的位移可能更好一些．在很多情况下,这两种“位移”并不矛盾,而是相互统一的．下面通过实例分析加深同学们对求功公式中位移的认识和理解． Most of the students believe that the displacement s refers to the displacement of the motion of the object in the formula for the work function W=Fscosα. In fact, the displacement s is understood as the displacement of the force at the point of action may be better. In many cases, these two “displacements” are not contradictory, but they are mutually exclusive. The following analysis through examples to deepen the students’ understanding and understanding of the displacement in the formula.