想問下
http://img340.imageshack.us/img340/4167/80599159qm2.jpg
如果+ve slope,愈黎愈平,就好似第一幅咁轉做v-t?
如果-ve slope,好似第二同第二幅,咁點轉做v-t?
收錄日期: 2021-04-12 21:51:24
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070304000051KK01872