在物理学中把物体位置的变化叫作机械运动.物理中经常用“路程-时间(s-t)图象”或“速度-时间(v-t)图象”来直观地体现物体做机械运动的情况.在初中物理中常见的两种运动形式是匀速直线运动和变速直线运动,用图象具体表示如下.1.匀速直线运动物体沿着直线且速度不变的运动叫匀速直线运动.做匀速直线运动的物体在任何时 In physics, the change in the position of an object is called a mechanical motion, and objects are often visually represented by “distance-time image” or “speed-time (vt) image” Movement in the junior high school physics are common two forms of motion is uniform linear motion and variable speed linear motion, with the image as follows.1.Linear linear motion objects along a straight line and the same speed motion is called uniform linear motion. Do uniform linear motion of the object at any time