来自程世婧的问题
【英语翻译FlyingakiteAgirlfliesakiteataheightof300ft,thewindcarryingthekitehorizontallyawayfromheratarateof25ft/sec.Howfastmustsheletoutthestringwhenthekiteis500ftawayfromher?】
英语翻译
FlyingakiteAgirlfliesakiteataheightof300ft,thewindcarryingthekitehorizontallyawayfromheratarateof25ft/sec.Howfastmustsheletoutthestringwhenthekiteis500ftawayfromher?
1回答
2020-10-15 00:32