![](https://lstatic.shangxueba.com/jiandati/pc/images/pc_jdt_tittleico.png)
图示机构中,AB=CD=1m,CB=BD,两杆在同一竖直平面内匀速转动。图示时刻AB水平,CD竖直,ω1=1rad/s,ω2=2rad/s,求此时D点的速度和加速度。![图示机构中,AB=CD=1m,CB=BD,两杆在同一竖直平面内匀速转动。图示时刻AB水平,CD竖直,](https://img2.soutiyun.com/shangxueba/ask/19452001-19455000/19454598/b310f1b-chaoxing2016-269191.png)
A.vD =0.707m/s,aD =1.732m/s平方;
B.vD =1.414m/s,aD =2.236m/s平方;
C.vD =1.732m/s,aD =3.162m/s平方;
D.vD =1.414m/s,aD =1.732m/s平方;
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_q_ckda.png)
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_panel_vip.png)
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_q_wyda.png)
- · 有5位网友选择 D,占比50%
- · 有2位网友选择 B,占比20%
- · 有2位网友选择 A,占比20%
- · 有1位网友选择 C,占比10%