来个数学高手解决这英文题目~!~!~~~A plane is flying due north at 400km/h. A wind from due west is blowing at 40km/h, which blows the plane slightly off coures. what is the plane's new direction(angle)and new velocity? 顺便问下,vertica
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/29 00:17:58
![来个数学高手解决这英文题目~!~!~~~A plane is flying due north at 400km/h. A wind from due west is blowing at 40km/h, which blows the plane slightly off coures. what is the plane's new direction(angle)and new velocity? 顺便问下,vertica](/uploads/image/z/10028334-30-4.jpg?t=%E6%9D%A5%E4%B8%AA%E6%95%B0%E5%AD%A6%E9%AB%98%E6%89%8B%E8%A7%A3%E5%86%B3%E8%BF%99%E8%8B%B1%E6%96%87%E9%A2%98%E7%9B%AE%7E%21%7E%21%7E%7E%7EA+plane+is+flying+due+north+at+400km%2Fh.+A+wind+from+due+west+is+blowing+at+40km%2Fh%2C+which+blows+the+plane+slightly+off+coures.+what+is+the+plane%27s+new+direction%28angle%29and+new+velocity%3F+%E9%A1%BA%E4%BE%BF%E9%97%AE%E4%B8%8B%2Cvertica)
来个数学高手解决这英文题目~!~!~~~A plane is flying due north at 400km/h. A wind from due west is blowing at 40km/h, which blows the plane slightly off coures. what is the plane's new direction(angle)and new velocity? 顺便问下,vertica
来个数学高手解决这英文题目~!~!~~~
A plane is flying due north at 400km/h. A wind from due west is blowing at 40km/h, which blows the plane slightly off coures. what is the plane's new direction(angle)and new velocity?
顺便问下,vertical velocity是什么意思?
来个数学高手解决这英文题目~!~!~~~A plane is flying due north at 400km/h. A wind from due west is blowing at 40km/h, which blows the plane slightly off coures. what is the plane's new direction(angle)and new velocity? 顺便问下,vertica
翻译:一架飞机正以400千米/时的速度向北飞行.一股风以40千米/时的速度向西刮来,并使飞机轻微偏离了航道.飞机的新方向和速度是多少?
本人现在就在美国上大学的说,这个题用三角函数应该可以解吧.
vertical velocity是垂直速度(速率)的意思
速度为根号161600
方向为西偏北tan10
.................北
.................^
............\....|
.............\...|
..............\..|400
...............\.|
.西<___a(\|
...40
(这...
全部展开
速度为根号161600
方向为西偏北tan10
.................北
.................^
............\....|
.............\...|
..............\..|400
...............\.|
.西<___a(\|
...40
(这里空格不能显示,所以打点)
利用勾股定理:
根号(40^2+400^2)
得出速度
方向就用tan
tanA等于tan(400/40)
所以角度为tan10
所以为西偏北tan10
收起
谢谢楼上的翻译,我来接着做吧,功劳算楼上的。
飞机的新速度是:根号(400^2+40^2) = 402 KM/h.
tan^-1(40/400) = 5.710593137 度
飞机新的飞行方向为:北偏西 5.710593137 度。