[理工] [動力]
想請問一下這一題
http://ppt.cc/M1_w
感覺不難卻不知道該怎麼下手
附帶在問一個問題
假設剛體在轉動
但題目沒有說角速度是否為常數
也沒有給角加速度
那是否能把角速當作常數?
以上問題感謝高手回答
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