Re: [請益] 重力場強度&重力加速度
想藉此篇順道問一個問題
基本上 慣性質量 是藉由和加速度成反比定義出來的
例如二個物體 受一樣的力 則加速度應該和質量成反比
m1a1 = m2a2 → m1 = (a2/a1)m2
此時之 若定m2為1kg,則m1就等於(a2/a1)kg
我有一個疑問就是 在此之前 "力"要怎麼測定?
因為推理上 力也是被定義出來才對
比如 定好了1kg 乘上 1m/s^2的加速度 就等於1N
但在上面定義質量的時候 顯然力已經被定義出來
這樣感覺好像矛盾了 先後問題到底應該是怎樣?
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 59.112.116.159
推
03/17 20:19, , 1F
03/17 20:19, 1F
推
03/17 20:46, , 2F
03/17 20:46, 2F
推
03/17 20:56, , 3F
03/17 20:56, 3F
→
03/17 20:58, , 4F
03/17 20:58, 4F
推
03/17 21:01, , 5F
03/17 21:01, 5F
→
03/17 21:04, , 6F
03/17 21:04, 6F
推
03/17 21:07, , 7F
03/17 21:07, 7F
→
03/17 21:07, , 8F
03/17 21:07, 8F
→
03/17 21:10, , 9F
03/17 21:10, 9F
→
03/17 21:11, , 10F
03/17 21:11, 10F
推
03/17 21:12, , 11F
03/17 21:12, 11F
→
03/17 21:15, , 12F
03/17 21:15, 12F
推
03/17 21:15, , 13F
03/17 21:15, 13F
→
03/17 21:16, , 14F
03/17 21:16, 14F
→
03/17 21:17, , 15F
03/17 21:17, 15F
推
03/17 21:17, , 16F
03/17 21:17, 16F
推
03/17 21:18, , 17F
03/17 21:18, 17F
→
03/17 21:18, , 18F
03/17 21:18, 18F
→
03/17 21:18, , 19F
03/17 21:18, 19F
→
03/17 21:20, , 20F
03/17 21:20, 20F
→
03/17 21:25, , 21F
03/17 21:25, 21F
推
03/18 09:19, , 22F
03/18 09:19, 22F
推
03/18 10:40, , 23F
03/18 10:40, 23F
→
03/18 10:56, , 24F
03/18 10:56, 24F
→
03/18 12:11, , 25F
03/18 12:11, 25F
→
03/18 12:14, , 26F
03/18 12:14, 26F
推
03/18 12:58, , 27F
03/18 12:58, 27F
→
03/18 12:59, , 28F
03/18 12:59, 28F
推
03/18 13:04, , 29F
03/18 13:04, 29F
→
03/18 13:05, , 30F
03/18 13:05, 30F
→
03/18 13:09, , 31F
03/18 13:09, 31F
→
03/18 13:11, , 32F
03/18 13:11, 32F
推
03/18 13:17, , 33F
03/18 13:17, 33F
→
03/18 13:18, , 34F
03/18 13:18, 34F
推
03/18 17:46, , 35F
03/18 17:46, 35F
→
03/18 17:47, , 36F
03/18 17:47, 36F
→
03/18 17:48, , 37F
03/18 17:48, 37F
→
03/18 17:49, , 38F
03/18 17:49, 38F
推
03/18 17:49, , 39F
03/18 17:49, 39F
推
03/18 17:52, , 40F
03/18 17:52, 40F
→
03/18 17:53, , 41F
03/18 17:53, 41F
→
03/18 17:53, , 42F
03/18 17:53, 42F
→
03/18 17:55, , 43F
03/18 17:55, 43F
→
03/18 17:58, , 44F
03/18 17:58, 44F
推
03/18 19:16, , 45F
03/18 19:16, 45F
→
03/18 19:16, , 46F
03/18 19:16, 46F
→
03/18 19:16, , 47F
03/18 19:16, 47F
→
03/18 20:53, , 48F
03/18 20:53, 48F
→
03/18 20:54, , 49F
03/18 20:54, 49F
推
03/18 20:54, , 50F
03/18 20:54, 50F
→
03/18 20:56, , 51F
03/18 20:56, 51F
→
03/18 20:56, , 52F
03/18 20:56, 52F
→
03/18 20:57, , 53F
03/18 20:57, 53F
→
03/18 20:58, , 54F
03/18 20:58, 54F
→
03/18 21:03, , 55F
03/18 21:03, 55F
→
03/18 21:05, , 56F
03/18 21:05, 56F
→
03/18 21:06, , 57F
03/18 21:06, 57F
→
03/18 21:07, , 58F
03/18 21:07, 58F
→
03/18 21:08, , 59F
03/18 21:08, 59F
→
03/18 21:11, , 60F
03/18 21:11, 60F
→
03/18 21:13, , 61F
03/18 21:13, 61F
推
03/18 22:32, , 62F
03/18 22:32, 62F
→
03/18 22:33, , 63F
03/18 22:33, 63F
→
03/18 22:33, , 64F
03/18 22:33, 64F
推
03/18 23:51, , 65F
03/18 23:51, 65F
→
03/18 23:51, , 66F
03/18 23:51, 66F
推
03/18 23:55, , 67F
03/18 23:55, 67F
→
03/18 23:55, , 68F
03/18 23:55, 68F
→
03/18 23:56, , 69F
03/18 23:56, 69F
→
03/18 23:57, , 70F
03/18 23:57, 70F
→
03/18 23:57, , 71F
03/18 23:57, 71F
→
03/18 23:57, , 72F
03/18 23:57, 72F
推
03/19 04:42, , 73F
03/19 04:42, 73F
→
03/19 04:44, , 74F
03/19 04:44, 74F
→
03/19 04:45, , 75F
03/19 04:45, 75F
→
03/19 04:46, , 76F
03/19 04:46, 76F
→
03/19 04:48, , 77F
03/19 04:48, 77F
→
03/19 04:49, , 78F
03/19 04:49, 78F
→
03/19 04:50, , 79F
03/19 04:50, 79F
→
03/19 04:51, , 80F
03/19 04:51, 80F
→
03/19 04:51, , 81F
03/19 04:51, 81F
→
03/19 04:52, , 82F
03/19 04:52, 82F
→
03/19 04:52, , 83F
03/19 04:52, 83F
→
03/19 04:53, , 84F
03/19 04:53, 84F
→
03/19 04:53, , 85F
03/19 04:53, 85F
→
03/19 04:55, , 86F
03/19 04:55, 86F
→
03/19 04:55, , 87F
03/19 04:55, 87F
→
03/19 04:56, , 88F
03/19 04:56, 88F
→
03/19 04:56, , 89F
03/19 04:56, 89F
推
03/19 05:02, , 90F
03/19 05:02, 90F
→
03/19 05:03, , 91F
03/19 05:03, 91F
→
03/19 05:03, , 92F
03/19 05:03, 92F
→
03/19 05:04, , 93F
03/19 05:04, 93F
→
03/19 05:05, , 94F
03/19 05:05, 94F
→
08/13 16:07, , 95F
08/13 16:07, 95F
→
09/17 14:07, , 96F
09/17 14:07, 96F
討論串 (同標題文章)