Re: [心得] rays
※ 引述《Homura (虎斑街貓˙喵姆拉です)》之銘言:
: 推 Zoomyoyo:撲 隨便推個文也會被抓出來鞭喔 10/18 23:28
: 推 Zoomyoyo:可以請教Levi大師 為什麼cutter會有橫移效果呢^^ 10/18 23:35
: 推 Zoomyoyo:非常快的變化球 飛行的時候已經很快了 接近打者不但會 08/07 15:43
: → Zoomyoyo:橫移 還會加速 就知道有多難打了 出棒稍慢 都會擊中球棒 08/07 15:43
: → Zoomyoyo:前端細部的部分 所以斷棒很多 08/07 15:44
: 可以請MTK的ㄉㄉ幫我們這些後輩們解釋一下
: 怎樣的投手可以投出會橫移,還會加速的變化球ㄋ?
不好意思 應該是這樣 :
cutter的投法跟直球的投法是類似 都是用食指跟中指
投 cutter 的時候 中指用力 通常球是向前旋轉(直球), 這時
由於中指的施力讓 球由右向左旋轉的動量增加
當球在運行的時候 風的阻力朝向投球者而來 此時 由右向左的動量
削弱右邊氣流的速度(因為反方向) 所以壓力增加 所以球會往左邊跑
達到往左打者內側竄的效果
不曉得這樣的解答 閣下能否接受呢?
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