1 . 如图是一物体在一直线上运动的位移—时间图像,物体在2s时的速度和6s内的位移分别是( )
![](https://img.xkw.com/dksih/QBM/2020/7/6/2500124957802496/2500541430898688/STEM/9414fc9e-5406-43c3-9f49-1133ecee0032.png?resizew=247)
![](https://img.xkw.com/dksih/QBM/2020/7/6/2500124957802496/2500541430898688/STEM/9414fc9e-5406-43c3-9f49-1133ecee0032.png?resizew=247)
A.v=4.5m/s,x=9m | B.v=4.5m/s,x=36m |
C.v=2.25m/s,x=9m | D.v=2.25m/s,x=36m |
您最近一年使用:0次
A.v=4.5m/s,x=9m | B.v=4.5m/s,x=36m |
C.v=2.25m/s,x=9m | D.v=2.25m/s,x=36m |