当前位置：首页>学习笔记>理论力学Ⅰ | 第一章学习笔记附章末习题全解 | 哈工大第九版

理论力学Ⅰ | 第一章学习笔记附章末习题全解 | 哈工大第九版

  • 2026-03-17 18:41:42
理论力学Ⅰ | 第一章学习笔记附章末习题全解 | 哈工大第九版
以下是第一章笔记部分：
以下是第一章习题1-1的全解全析：
以下是章末习题1-2的全解全析：
以下是章末习题1-3的全解全析：
本章作为静力学的第一章，也是全书开篇的一章，受力分析是整个力学的基础，更是重中之重。试想，如果受力图都没有画对，之后的力学计算又怎么可能做对的呢？总之，定性计算是定量计算的基础。学好这一章，是学好整本书的基础。
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  1. CONNECT:[ UseTime:0.000958s ] mysql:host=127.0.0.1;port=3306;dbname=no_67808;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001617s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000705s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000660s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001423s ]
  6. SELECT * FROM `set` [ RunTime:0.000578s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001385s ]
  8. SELECT * FROM `article` WHERE `id` = 474462 LIMIT 1 [ RunTime:0.006078s ]
  9. UPDATE `article` SET `lasttime` = 1774173354 WHERE `id` = 474462 [ RunTime:0.015152s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000595s ]
  11. SELECT * FROM `article` WHERE `id` < 474462 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001147s ]
  12. SELECT * FROM `article` WHERE `id` > 474462 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001070s ]
  13. SELECT * FROM `article` WHERE `id` < 474462 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.009813s ]
  14. SELECT * FROM `article` WHERE `id` < 474462 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.017542s ]
  15. SELECT * FROM `article` WHERE `id` < 474462 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.007671s ]
0.257415s