用不可伸长的绳牵连物体运动是高中阶段经常遇到的一种物理模型,当牵连物体的速度方向与绳不在一条直线上时,需要将物体的速度沿绳方向和垂直绳方向分解,由于绳不可伸长,牵连物体速度沿绳方向的分速度应相等,运用这一特点,可以实现牵连物体速度之间的互求.近几年来,在物理竞赛和自主招生的试题中时 Involvement of objects with inextensible rope movement is a physical model often encountered in high school. When the speed of the implicated objects is not in a straight line with the rope, the speed of the objects needs to be decomposed along the rope direction and the vertical rope direction. Rope inextensible, implicated object speed along the rope direction of the sub-speed should be equal, the use of this feature, you can achieve the interrelationships between objects speed each other.In recent years, physical competition and self-enrollment in the examination questions