[問題] 請教球旋轉軌跡的疑問?
請問各位大大,昨天遇到一位初學球友,當下我在與他解釋下旋球的觀念時,產生一個問題,當我們發球製造純下旋球時,球體自轉為順時針方向,至對方拉球製造出弧圈變成上旋球後,這時候,球仍是順時針旋轉,此時,該球友發問,球的旋轉方向軌跡仍相同不是嗎?為何會有旋轉上的差別呢?
各位大大,不好意思我知道會打球的人,一定都知道球有上下旋球的分別這麼簡單的問題,不過當下被問到這問題,我實在不知道如何確切的回答他為何會有旋轉上的差別,是否是力學、或是作用力的問題,期待各位大大指教。(勿戰,感謝。)
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 223.141.251.218
※ 文章網址: https://www.ptt.cc/bbs/tabletennis/M.1463031407.A.44F.html
→
05/12 13:48, , 1F
05/12 13:48, 1F
→
05/12 13:49, , 2F
05/12 13:49, 2F
推
05/12 13:57, , 3F
05/12 13:57, 3F
→
05/12 14:10, , 4F
05/12 14:10, 4F
→
05/12 14:10, , 5F
05/12 14:10, 5F
→
05/12 14:10, , 6F
05/12 14:10, 6F
推
05/12 14:11, , 7F
05/12 14:11, 7F
→
05/12 14:13, , 8F
05/12 14:13, 8F
→
05/12 14:13, , 9F
05/12 14:13, 9F
→
05/12 14:14, , 10F
05/12 14:14, 10F
→
05/12 14:15, , 11F
05/12 14:15, 11F
推
05/12 16:56, , 12F
05/12 16:56, 12F
→
05/12 16:56, , 13F
05/12 16:56, 13F
→
05/12 17:03, , 14F
05/12 17:03, 14F
推
05/12 17:25, , 15F
05/12 17:25, 15F
→
05/12 17:25, , 16F
05/12 17:25, 16F
推
05/12 18:35, , 17F
05/12 18:35, 17F
→
05/12 18:35, , 18F
05/12 18:35, 18F
→
05/12 18:35, , 19F
05/12 18:35, 19F
推
05/12 19:06, , 20F
05/12 19:06, 20F
→
05/12 19:08, , 21F
05/12 19:08, 21F
→
05/12 19:51, , 22F
05/12 19:51, 22F
→
05/12 19:52, , 23F
05/12 19:52, 23F
→
05/12 21:17, , 24F
05/12 21:17, 24F
推
05/12 21:31, , 25F
05/12 21:31, 25F
→
05/12 21:31, , 26F
05/12 21:31, 26F
→
05/12 21:31, , 27F
05/12 21:31, 27F
→
05/12 21:31, , 28F
05/12 21:31, 28F
→
05/12 21:31, , 29F
05/12 21:31, 29F
推
05/12 23:07, , 30F
05/12 23:07, 30F
推
05/12 23:30, , 31F
05/12 23:30, 31F
推
05/12 23:31, , 32F
05/12 23:31, 32F
推
05/13 04:21, , 33F
05/13 04:21, 33F
→
05/13 08:47, , 34F
05/13 08:47, 34F
推
05/13 09:55, , 35F
05/13 09:55, 35F
→
05/13 09:57, , 36F
05/13 09:57, 36F
→
05/13 09:59, , 37F
05/13 09:59, 37F
→
05/13 10:00, , 38F
05/13 10:00, 38F
推
05/13 11:05, , 39F
05/13 11:05, 39F
→
05/13 11:05, , 40F
05/13 11:05, 40F
→
05/13 11:06, , 41F
05/13 11:06, 41F
推
05/13 11:08, , 42F
05/13 11:08, 42F
→
05/13 11:09, , 43F
05/13 11:09, 43F
→
05/13 11:10, , 44F
05/13 11:10, 44F
→
05/13 11:11, , 45F
05/13 11:11, 45F
→
05/13 11:12, , 46F
05/13 11:12, 46F
→
05/13 11:13, , 47F
05/13 11:13, 47F
→
05/13 11:13, , 48F
05/13 11:13, 48F
→
05/13 11:14, , 49F
05/13 11:14, 49F
→
05/13 11:15, , 50F
05/13 11:15, 50F
推
05/13 11:15, , 51F
05/13 11:15, 51F
→
05/13 11:15, , 52F
05/13 11:15, 52F
→
05/13 11:15, , 53F
05/13 11:15, 53F
→
05/13 11:17, , 54F
05/13 11:17, 54F
→
05/13 11:18, , 55F
05/13 11:18, 55F
推
05/13 11:20, , 56F
05/13 11:20, 56F
推
05/13 11:20, , 57F
05/13 11:20, 57F
→
05/13 11:20, , 58F
05/13 11:20, 58F
→
05/13 11:21, , 59F
05/13 11:21, 59F
→
05/13 11:22, , 60F
05/13 11:22, 60F
→
05/13 11:23, , 61F
05/13 11:23, 61F
→
05/13 11:24, , 62F
05/13 11:24, 62F
→
05/13 11:25, , 63F
05/13 11:25, 63F
→
05/13 11:26, , 64F
05/13 11:26, 64F
→
05/13 11:27, , 65F
05/13 11:27, 65F
→
05/13 11:29, , 66F
05/13 11:29, 66F
推
05/13 12:48, , 67F
05/13 12:48, 67F
→
05/13 12:49, , 68F
05/13 12:49, 68F
噓
05/13 14:52, , 69F
05/13 14:52, 69F