[問題] 力學

看板Physics作者 (再見 B67)時間14年前 (2011/11/12 11:56), 編輯推噓3(305)
留言8則, 5人參與, 最新討論串3/4 (看更多)
Conservative Quantities: Considering a uniform disk rolling without slipping on an inclined plane, and the inclined plane is on a smooth table, please find four constants during this process. The radius of the disk is a and the mass of the disk is m, while the mass for the inclined plane is M and the inclined angle is α. You can use the generalized coordinates of x and s(sliping downward the plane). 這題想不出來... 有人可以指點一下嗎? 感謝!! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.112.218.170

11/12 12:20, , 1F
不太確定所以先不噓 好像手動至底齁?
11/12 12:20, 1F

11/12 12:47, , 2F
昨天晚上以為想出來就刪文去睡 睡醒後發現並沒有XD
11/12 12:47, 2F

11/12 12:50, , 3F
懇請大大不吝賜教
11/12 12:50, 3F

11/12 17:25, , 4F
我只知道會有三個守恆量 不知第四個是什麼><
11/12 17:25, 4F

11/12 17:45, , 5F
質量守恆 能量守恆 動量守恆 角動量守恆
11/12 17:45, 5F

11/12 21:00, , 6F
.......
11/12 21:00, 6F

11/12 21:44, , 7F
好像想出來了...
11/12 21:44, 7F

11/12 23:56, , 8F
有答案嗎?
11/12 23:56, 8F
文章代碼(AID): #1ElUw3W9 (Physics)
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文章代碼(AID): #1ElUw3W9 (Physics)