问题描述：
英语翻译
A ball,dropped from rest,covers two-sevenths of the distance to the ground in the last second of its fall
最好是懂物理的人帮忙翻译!
球从多高的地方掉落?
2楼的答案错了哦
A ball,dropped from rest,covers two-sevenths of the distance to the ground in the last second of its fall
最好是懂物理的人帮忙翻译!
球从多高的地方掉落?
2楼的答案错了哦
问题解答：
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