英语翻译A man can row at 4 km/h,and run at 3 km/h.He needs to ge
英语翻译
A man can row at 4 km/h,and run at 3 km/h.He needs to get from a point A,on the south bank of a stretch of still water,to point B on the north bank of the water.The direct distance from A to B is 5 km,and the water is 4 km wide.He starts rowing with an angle theta between North and the direction in which he rows.Find an expression for the time he will take to get from A to B,in terms of theta
A man can row at 4 km/h,and run at 3 km/h.He needs to get from a point A,on the south bank of a stretch of still water,to point B on the north bank of the water.The direct distance from A to B is 5 km,and the water is 4 km wide.He starts rowing with an angle theta between North and the direction in which he rows.Find an expression for the time he will take to get from A to B,in terms of theta
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chenmaomao 幼苗
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一个人划船4千米每小时，跑步3千米每小时。他需要从河水的南岸的点A到河水的北岸的点B。A到B之间的直线距离是5千米，水面是4千米宽。他以一个θ角度，在南北之间直线划船航行，找到计算他从A点到B点所用时间的公式，并计算出θ
整体意思应该没错 希望有帮助！...
整体意思应该没错 希望有帮助！...
1年前
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