更新1:
How fast is it moving when it is at a height of 13.0 m ? How much time is required to reach this height?
How fast is it moving when it is at a height of 13.0 m ? How much time is required to reach this height?
收錄日期: 2021-04-18 17:51:42
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20170927084852AAgUUCT