搜搜做题作业网英语翻译A descent vehicle landing on Mars has a vertical velocit
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英语翻译
A descent vehicle landing on Mars has a vertical velocity toward the surface of Mars of 7.0 m/s.At the same time,it has a horizontal velocity of 2.5 m/s.
(a) At what speed does the vehicle move along its descent path?
(b) At what angle with the vertical is this path?
翻译：很多语法是错的,大概看下吧,应该是对的.
一个血统车登陆火星上有一垂直向火星表面7.0米/秒的速度.在同一时间,它有一个水平的速度为2.5米/秒.
（一）以什么速度的车辆沿着它的下降路径?
（b）于什么样的角度与垂直这条道路?
A descent vehicle landing on Mars has a vertical velocity toward the surface of Mars of 7.0 m/s.At the same time,it has a horizontal velocity of 2.5 m/s.
(a) At what speed does the vehicle move along its descent path?
(b) At what angle with the vertical is this path?
翻译：很多语法是错的,大概看下吧,应该是对的.
一个血统车登陆火星上有一垂直向火星表面7.0米/秒的速度.在同一时间,它有一个水平的速度为2.5米/秒.
（一）以什么速度的车辆沿着它的下降路径?
（b）于什么样的角度与垂直这条道路?
1)根据勾股定理v2=7*7+2.5*2.5=54.25m\s
2)角度为与竖直方向呈arctan5\14
2)角度为与竖直方向呈arctan5\14
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