將一舊野放係斜面 斜角係30度就識行,求靜摩擦系數
答案係0.577嗎?
將一舊野放係斜面 斜角係30度就識行,求靜摩擦系數
2008-09-04 12:54 am
回答 (1)
2008-09-04 1:52 am
✔ 最佳答案
Yes [assuming that the inclined plane is fixed]mgsin30 = (coeff of friction) x (mgcos30)
coeff = tan30 = 0.577
收錄日期: 2021-05-03 11:43:47
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080903000051KK01245