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[問題] 工程力學-摩擦係數
Nov 14th 2013, 14:30, by permanentoc

作者permanentoc (perman)

看板Examination

標題[問題] 工程力學-摩擦係數

時間Thu Nov 14 14:30:24 2013

http://ppt.cc/K0ji 算出a的部分還看得懂 不過第2行就看不太懂 不知道是不是過程寫錯了? 本來是想F=ma=摩擦係數*mg 可是行不通 有大大可以解釋嗎? -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 111.250.186.7

→ vvssinn:答案沒錯，解答也沒錯，你想用的方法也沒錯。所以問題是？ 11/14 14:36

變成摩擦係數=a/g 可是過程卻是6.86/32.2 困惑點 ※ 編輯: permanentoc 來自: 111.250.186.7 (11/14 14:40)

→ qqryo:你想的沒有錯阿，M消掉g在移項，就求到摩擦係數 11/14 14:40

→ sweetycool:這題答案C吧,用運動學方法解太慢了,能量一行就出來 11/14 14:42

推 vvssinn:樓上高手 11/14 15:01

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