论文部分内容阅读
1．力与运动的关系说明: (1)“物体不受力”:是指物体在运动方向上不受力． (2)“保持”:运动的物体以原来的速度做匀速直线运动;静止的物体仍静止．即动者恒动, 静者恒静． (3)“运动状态发生变化”:物体的速度大
1. The relationship between force and movement shows: (1) “Object is not force”: refers to the object in the direction of movement without force. (2) “Keeping”: The moving object makes a uniform linear motion at the original speed; the stationary object remains still. That is, the activist is always moving and the quiet person is static. (3) “change in motion”: the speed of the object