一根长为2a的木棒AB斜靠在墙面上,与地面的夹角为60°,若木棒A端沿墙面下滑到A',且AA'=(根号3-根号2)a,那么AB的中点P随之运动的路线长为A 1/12 πaB 1/8 πa C 1/10 πa D 1/6 πa
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 13:29:18
![一根长为2a的木棒AB斜靠在墙面上,与地面的夹角为60°,若木棒A端沿墙面下滑到A',且AA'=(根号3-根号2)a,那么AB的中点P随之运动的路线长为A 1/12 πaB 1/8 πa C 1/10 πa D 1/6 πa](/uploads/image/z/8400523-67-3.jpg?t=%E4%B8%80%E6%A0%B9%E9%95%BF%E4%B8%BA2a%E7%9A%84%E6%9C%A8%E6%A3%92AB%E6%96%9C%E9%9D%A0%E5%9C%A8%E5%A2%99%E9%9D%A2%E4%B8%8A%2C%E4%B8%8E%E5%9C%B0%E9%9D%A2%E7%9A%84%E5%A4%B9%E8%A7%92%E4%B8%BA60%C2%B0%2C%E8%8B%A5%E6%9C%A8%E6%A3%92A%E7%AB%AF%E6%B2%BF%E5%A2%99%E9%9D%A2%E4%B8%8B%E6%BB%91%E5%88%B0A%27%2C%E4%B8%94AA%27%3D%EF%BC%88%E6%A0%B9%E5%8F%B73-%E6%A0%B9%E5%8F%B72%EF%BC%89a%2C%E9%82%A3%E4%B9%88AB%E7%9A%84%E4%B8%AD%E7%82%B9P%E9%9A%8F%E4%B9%8B%E8%BF%90%E5%8A%A8%E7%9A%84%E8%B7%AF%E7%BA%BF%E9%95%BF%E4%B8%BAA+1%2F12+%CF%80aB+1%2F8+%CF%80a+C+1%2F10+%CF%80a+++++D+1%2F6+%CF%80a)
xSNQbb2gւɠ*&}B47WQ@j`۔I~D_!mc|l:rkYL*5}[:սY%WRN6.IDzX!
$pִ
mŮ-pDzYjcup=⸞@qd|l2p,^ڈ*ז4i,Uj]hr6$B5۠QCfh!
!/"!{x G+@Exepq8p0