设A距地面高度为h时,A的动能与势能相等,设A的质量为2m,则B的质量为m,
对A、B组成的系统,由机械能守恒定律得:2mgH=
1 |
2 |
由题意知:2mgh=
1 |
2 |
2H |
5 |
故选:C.
本文地址: http://www.goggeous.com/20241210/1/480948
文章来源:天狐定制
版权声明:除非特别标注,否则均为本站原创文章,转载时请以链接形式注明文章出处。
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2025-01-08职业培训
2024-12-10 01:56:32职业培训
2024-12-10 01:56:31职业培训
2024-12-10 01:56:30职业培训
2024-12-10 01:56:24职业培训
2024-12-10 01:56:20职业培训
2024-12-10 01:56:19职业培训
2024-12-10 01:56:17职业培训
2024-12-10 01:56:10职业培训
2024-12-10 01:56:08职业培训
2024-12-10 01:56:07职业培训
2024-12-30 02:03职业培训
2024-12-03 21:21职业培训
2025-01-01 15:09职业培训
2024-12-10 13:49职业培训
2024-12-15 06:02职业培训
2024-12-06 20:24职业培训
2025-01-08 05:28职业培训
2024-11-27 16:57职业培训
2024-12-11 09:35职业培训
2024-12-31 22:06职业培训
扫码二维码
获取最新动态