<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>牛顿管实验</title> <style> body { margin: 0; display: flex; justify-content: center; align-items: center; height: 100vh; background-color: #f4f4f9; font-family: Arial, sans-serif; } .container { position: relative;
这段代码模拟了牛顿管实验中物体自由落体的物理现象。以下是代码分析： 1. 物理模拟部分： - 重力加速度设为0.5px/frame - 速度随重力持续增加 - 位置根据速度变化 2. 碰撞检测： - 当小球位置超过380px（容器高度400px减去小球半径） - 碰撞后速度反向并衰减（系数0.7模拟能量损失） 3. 动画实现： - 使用requestAnimationFrame实现平滑动画 - 通过修改top属性改变小球位置 优化建议： 1. 使用transform: translateY代替top属性可获得更好的性能 2. 添加暂停/重置功能增强交互性 3. 考虑使用物理引擎库如matter.js实现更复杂效果 注意事项： 1. 重力值0.5需根据屏幕刷新率调整，不同设备可能表现不一致 2. 碰撞检测未考虑小球半径，严格计算应是容器高度减去小球高度 3. 能量衰减系数0.7是经验值，实际物理过程会更复杂 [2025-04-23 14:25:13 | AI写代码神器 | 225点数解答]
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