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I'm‧泥〃 last won the day on June 3 2016
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June 13, 2016
June 5, 2016
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那我問囉~~
質量m的小物體,自質量M、傾斜角"細踏"(符號不會打啦=3=!)且可滑動的斜面上高H處自靜止下滑,不計任何阻力,且地面光滑,則m離開斜面後,斜面速率為何?
答案:根號{(2m^2gHcos^2細踏)/【(M+m)(M+msin^2細踏)】}
看不懂解析在幹麻= =+