物理学 3-5保守力与非保守力势能 第五版 保守力与非保守力保守力作功的数学表达式 (The conservative force The non-conservative force The mathematical expression of work by the conservative force) 1保守力作功的特点 The feature of the work done by the conservative force 保守力所作的功仅决定于物体始、末位置, 而与所经过的路径无关 The work done by the conservative force only depends on the initial &e final positions of the object is independent of the path that it took i 第三章动量守恒和能量守恒 4/123-5 保守力与非保守力 势能 第三章 动量守恒和能量守恒 物理学 第五版 4/12 保守力所作的功仅决定于物体始、末位置， 而与所经过的路径无关． 二 保守力与非保守力 保守力作功的数学表达式 The work done by the conservatiive force only depends on the initial & final positions of the object & is independent of the path that it took. (The conservatiive force & The non-conservative force The mathematical expression of work by the conservatiive force) The feature of the work done by the conservatiive force 1 保守力作功的特点