一组与弹簧相关运动的临界问题

• 作 者: 张政宗
• 机 构: 南京金陵中学,
• 出 处: 物理之友
• 发表日期: 2001年02期
• 关键词: 力和运动 水平放置 形变过程 弹性势能 竖直方向 最大速度 重力势 简谐振动 临界现象 完全非弹性碰撞

弹簧在形变过程中,其弹力和能量也在不断地变化.无论弹簧水平放置,或竖直放置,与弹簧接触或连接的物体,随着弹簧的形变,物体的位移、速度和加速度都将随之变化,并且将出现上述物理量在变化中有极值的临界问题.在弹簧形变与弹力变化的过程中,对系统进行受力和运动状态的分析,

Spring in the deformation process, its elastic force and energy are constantly changing.Whether the spring is placed horizontally, or placed vertically, contact with the spring or connected objects, with the spring deformation, the object’s displacement, velocity and acceleration will be with , And there will be a critical problem that the above physical quantities have the extreme value in the change.In the course of spring deformation and elastic force change, the force and the movement state of the system are analyzed,