牛頓第二定理敘述:施力F對系統造成的狀態改變,
可表示為F=dp/dt(p為希臘字)或F=ma,
試問上述二式關係是否永遠相等?有否限制條件?
其中p為動量,a為加速度,m為系統質量。
這是普物考試的習題,可是寫不出來> <
我不想再重修了= ="......
拜託大家幫忙
謝謝<(_ _)>
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.127.186.5
推
12/31 02:07, , 1F
12/31 02:07, 1F
推
12/31 08:14, , 2F
12/31 08:14, 2F
推
12/31 09:11, , 3F
12/31 09:11, 3F
※ 編輯: mandyly8 來自: 140.127.186.5 (12/31 13:11)
推
12/31 16:46, , 4F
12/31 16:46, 4F
推
12/31 18:19, , 5F
12/31 18:19, 5F
推
12/31 18:24, , 6F
12/31 18:24, 6F
推
12/31 19:59, , 7F
12/31 19:59, 7F
推
12/31 20:48, , 8F
12/31 20:48, 8F
推
12/31 21:48, , 9F
12/31 21:48, 9F
→
12/31 21:49, , 10F
12/31 21:49, 10F
推
12/31 22:29, , 11F
12/31 22:29, 11F
→
12/31 22:41, , 12F
12/31 22:41, 12F
推
01/01 10:31, , 13F
01/01 10:31, 13F
→
01/01 10:32, , 14F
01/01 10:32, 14F
推
01/01 10:53, , 15F
01/01 10:53, 15F
→
01/01 10:53, , 16F
01/01 10:53, 16F
→
01/01 10:54, , 17F
01/01 10:54, 17F
→
01/01 10:54, , 18F
01/01 10:54, 18F
→
01/01 10:55, , 19F
01/01 10:55, 19F
推
01/01 17:43, , 20F
01/01 17:43, 20F
推
01/01 17:59, , 21F
01/01 17:59, 21F
→
01/01 18:02, , 22F
01/01 18:02, 22F
推
01/01 19:08, , 23F
01/01 19:08, 23F
→
01/01 19:09, , 24F
01/01 19:09, 24F
→
01/01 19:11, , 25F
01/01 19:11, 25F
推
01/01 19:41, , 26F
01/01 19:41, 26F
推
01/01 19:43, , 27F
01/01 19:43, 27F
→
01/01 19:45, , 28F
01/01 19:45, 28F
推
01/01 19:47, , 29F
01/01 19:47, 29F
→
01/01 19:48, , 30F
01/01 19:48, 30F
推
01/02 02:53, , 31F
01/02 02:53, 31F
→
01/03 12:17, , 32F
01/03 12:17, 32F
推
01/03 22:40, , 33F
01/03 22:40, 33F
推
01/04 07:53, , 34F
01/04 07:53, 34F
→
01/04 14:57, , 35F
01/04 14:57, 35F
推
01/05 11:56, , 36F
01/05 11:56, 36F
推
01/05 12:32, , 37F
01/05 12:32, 37F
討論串 (同標題文章)