保齡球運動過程中的外力.簡單問題 - 運動
By Anonymous
at 2011-11-23T00:00
at 2011-11-23T00:00
Table of Contents
阿華擲出了一顆會轉彎的保齡球,造成全倒請問保齡球在運動過程中,主要受到的外力是??A地球引力B地板摩擦力和空氣阻力答案是B,可是球不是也有受地球引力?為何不可選A?...Showmore
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運動
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By Rachel
at 2011-11-24T14:21
at 2011-11-24T14:21
By Linda
at 2011-11-24T05:58
at 2011-11-24T05:58
By Anonymous
at 2011-11-25T08:19
at 2011-11-25T08:19
By Bethany
at 2011-11-27T16:52
at 2011-11-27T16:52
By Barb Cronin
at 2011-11-26T10:37
at 2011-11-26T10:37
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