Question
a bird can fly in still air at 20 miles per hour. when the wind is blowing straight from the north at 10 miles/hr. in what direction must the bird aim in order that it may fly from east to west and at what speed will it have?
Answers
20^2 = 10^2 + v^2
sin(Θ) = 10/20 ... north of west
sin(Θ) = 10/20 ... north of west
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