一、恒力做功恒力做功可直接用公式W=Fscosθ计算,但必须明确此公式只适用恒力和直线运动的条件,还必须弄清是求哪一个力(或物件)对哪一个物体做功,若求一个物体对另一个物体做的功,则必须对另一个物体进行隔离,求出这个物体对另一个物体的所有作用力,再分别求出这些力对另一个物体做的功,最后根据代数和求总功。 One, constant power to work Constant power can be calculated directly using the formula W = Fscosθ, but it must be clear that this formula applies only the conditions of constant force and linear motion, but also must find out which force (or object) for which object does work If you seek the work done by one object on another, you must isolate the other object, find all the forces that the object exerts on the other object, and then find the work done by these forces on the other object. Finally, According to algebra and total work.