Mathematics, 10.11.2020 17:00 chino7083
Starting from an airport, an airplane flies 225 miles south, then 175 miles northwest. How far, in miles, from the airport is the plane
Answers: 2
![\vec r_{A} = - 225\,\hat{j}\,\,\,[mi]](/tpl/images/0883/9530/50946.png)
(Eq. 1)![\vec r_{B} = 175\cdot \cos 135^{\circ}\,\hat{i} + 175\cdot \sin 135^{\circ}\,\hat{j}\,\,\,[mi]](/tpl/images/0883/9530/44a3f.png)
(Eq. 2)
(Eq. 3)
 ![[mi]](/tpl/images/0883/9530/ecd9e.png)
 
(Eq. 4)
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Starting from an airport, an airplane flies 225 miles south, then 175 miles northwest. How far, in m...
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