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参照物及其选择

> 一只小猫，跳起来抓住悬在天花板上的竖直木杆，当小猫抓住木杆的瞬间，悬挂木杆的细绳断了．设木杆足够长，小猫不断地顺杆向上爬，则小猫相对于地面的运动是 A.静止 B.向下运动 C.向上运动 D.以上三种情况都有可能

问题：

发布时间：2020-03-13

一只小猫，跳起来抓住悬在天花板上的竖直木杆，当小猫抓住木杆的瞬间，悬挂木杆的细绳断了．设木杆足够长，小猫不断地顺杆向上爬，则小猫相对于地面的运动是

A.静止
B.向下运动
C.向上运动
D.以上三种情况都有可能

参考答案：

提问用户：8y***pel

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