ESPN sport science 小威的發球 - 網球 Tennis

By Charlie
at 2015-09-01T14:22
at 2015-09-01T14:22
Table of Contents
http://espn.go.com/video/clip?id=13550350
ESPN的科學解析小威的發球
為什麼小威的的發球這麼難接?
1、120 mile的發球
當接球方看到小威的發球並且決定球的落點時
球已經過了中線的網子
對方只有0.4秒的時間移動去接球
就算世界跑最快的bolt來都接不到
2、良好的偽裝
如果只有速度並不代表對方接不到
小威真正可怕的地方是在於發球的動作一模一樣
直到最後0.2才轉動拍子12度決定球出來的方向
也就是說除非球已打出
要不然你沒有辦法預判球擊出的落點
而她的球拍只需要轉動12 度
其落點左右就就差了超過9尺(2.7公尺)的距離
如果對方沒有偷跑的話
就得要在0.4秒內移動超過2.7公尺來擊球
3、一樣可怕的二發
小威的二發同樣可怕
在溫布頓她最快的二發高達108 mile
這樣的二發有多快?
比納達爾"最快的"二發還快11 mile
也就是說小威的二發比納達爾還強很多
這樣看來小威去跟男生打應該也可以發不少的ace
--
ESPN的科學解析小威的發球
為什麼小威的的發球這麼難接?
1、120 mile的發球
當接球方看到小威的發球並且決定球的落點時
球已經過了中線的網子
對方只有0.4秒的時間移動去接球
就算世界跑最快的bolt來都接不到
2、良好的偽裝
如果只有速度並不代表對方接不到
小威真正可怕的地方是在於發球的動作一模一樣
直到最後0.2才轉動拍子12度決定球出來的方向
也就是說除非球已打出
要不然你沒有辦法預判球擊出的落點
而她的球拍只需要轉動12 度
其落點左右就就差了超過9尺(2.7公尺)的距離
如果對方沒有偷跑的話
就得要在0.4秒內移動超過2.7公尺來擊球
3、一樣可怕的二發
小威的二發同樣可怕
在溫布頓她最快的二發高達108 mile
這樣的二發有多快?
比納達爾"最快的"二發還快11 mile
也就是說小威的二發比納達爾還強很多
這樣看來小威去跟男生打應該也可以發不少的ace
--
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網球
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