一般的生活照片都可以看作是二维图片,而二维图片我们可以由直角坐标系中的点来表示出来,所以,当我们解决物理中的问题时,可以先根据问题的受力分析做出直角坐标系,之后将能量或者力分解的坐标系上由守恒定律快速求解。一、火车转弯,分加速度在一些现实问题中,加速度并只是知道初速度和末速度以及所需要的时间就能计算出加速度。最 General life photos can be seen as two-dimensional images, and two-dimensional images we can point out from the Cartesian coordinate system, so when we solve the physical problems, you can first do the stress analysis based on the problem Out of the Cartesian coordinate system, and then solve the energy or force decomposition coordinate system quickly by the conservation law. First, the train turns, sub-acceleration In some real problems, acceleration and just know the initial and final velocity and the time required to calculate the acceleration. most