3200M/(18M/s-2M/s)
=3200M/16M/s
=200s
答：要200秒才能追上隊(duì)頭
一隊(duì)士兵以v1=2米每秒的速度在公路上勻速前進(jìn)隊(duì)伍長(zhǎng)3200米,通訊員騎摩托車以V2=18米每秒的速度從隊(duì)尾向
一隊(duì)士兵以v1=2米每秒的速度在公路上勻速前進(jìn)隊(duì)伍長(zhǎng)3200米,通訊員騎摩托車以V2=18米每秒的速度從隊(duì)尾向
隊(duì)首傳送命令,到達(dá)隊(duì)首后立即調(diào)轉(zhuǎn)車頭以原速返回隊(duì)尾,求通訊員往返一次的時(shí)間是多長(zhǎng)
隊(duì)首傳送命令,到達(dá)隊(duì)首后立即調(diào)轉(zhuǎn)車頭以原速返回隊(duì)尾,求通訊員往返一次的時(shí)間是多長(zhǎng)
物理人氣：667 ℃時(shí)間：2019-08-22 12:35:40
優(yōu)質(zhì)解答
我來(lái)回答
類似推薦
- 一元一次方程x2+（2m-1）x+m2=0,有兩個(gè)實(shí)數(shù)根x1,x2 （1）求實(shí)數(shù)m的取值范圍 （2）當(dāng)x12-x22=0時(shí),求m
- 城市污染對(duì)人類有何危害
- ______ a lot of books,the boy knows much more than the boys of his age.
- Lucy often does her homework at school改為一般疑問(wèn)句
- 我父親似乎很高興.My father ___ ___ ____ happy.
- much to 和 many 區(qū)別
- You are my little little apple~誰(shuí)會(huì)翻譯吶
- what did you have done this afternoon?和 what have you done at this afternoon?有什么區(qū)別?
- 二甲苯的三種同分異構(gòu)體的溶沸點(diǎn)遞變?
- Bill eats _____ of _____ food
- 我的爸爸 求寫作思路 就行
- 氫原子中 質(zhì)子和電子所帶的電荷量是多少
猜你喜歡
- 1描寫霧海 的四字詞語(yǔ)
- 2填空1：he always gets to school by s( ).2:it is ten minutes h( ) from my home to school
- 3我國(guó)唯一注入北冰洋的河流是哪條河流
- 4就是做題時(shí)候在化學(xué)式下方量的書寫方法.1：1的含義、
- 5將50mL4mol/L的AlCl3溶液與4mol/L的NaOH溶液反應(yīng)后得沉淀7.8g,所消耗NaOH溶液的體積為多少mL?
- 6幾個(gè)數(shù)的最大公因數(shù)是最小公倍數(shù)的（）數(shù),幾個(gè)數(shù)的最小公倍數(shù)是最大公因數(shù)的（）數(shù)
- 7需要英語(yǔ)的春節(jié)短語(yǔ)!
- 8酸根離子指什么?
- 9求解軌跡問(wèn)題
- 10設(shè)f（x）=ax^2+bx+c（a≠0） ； 若f（x+1）=f（-x）,求證-b/2a=1
- 11英語(yǔ)翻譯
- 12怎么做啊?要過(guò)程.某電視機(jī)廠某型號(hào)電視比去年增產(chǎn)40％,實(shí)際比計(jì)劃多生產(chǎn)20％,此型號(hào)電視今年實(shí)際產(chǎn)量是去年的（ ）％?