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速度与机械运动

> 甲、乙、丙三辆汽车，同时向前行驶，甲车速度为10m/s，乙车的速度为30km/h，丙车的速度为20km/h，乙产生了向后退的感觉，此感觉来自于 A.乙选择甲车作参照物 B.乙选择乙车作参照物 C.乙选择丙车作参照物 D.乙选择电线杆作参照物

问题：

发布时间：2024-09-08

甲、乙、丙三辆汽车，同时向前行驶，甲车速度为10m/s，乙车的速度为30km/h，丙车的速度为20km/h，乙产生了向后退的感觉，此感觉来自于

A.乙选择甲车作参照物
B.乙选择乙车作参照物
C.乙选择丙车作参照物
D.乙选择电线杆作参照物

参考答案：

提问用户：rI***hbE

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