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速度与机械运动

> 下列数据中最接近实际的是 A.普通铅笔的长度约为40cm B.人正常步行的速度约5m/s C.中学生登上一层楼做功约1500J D.中学生站立时对地面的压强约1.3×103Pa

问题：

发布时间：2024-09-07

下列数据中最接近实际的是

A.普通铅笔的长度约为40cm
B.人正常步行的速度约5m/s
C.中学生登上一层楼做功约1500J
D.中学生站立时对地面的压强约1.3×103Pa

参考答案：

提问用户：0G***qt2

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