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Dafna1 [17]
3 years ago
13

givings direccións to find different ranger staton.unluckily all the ranger are busy rescuing others campers and can't come to y

our aid so you will have to follow directions to find ranger station. The first response instructor you to travel north (90degrees) for 4.5 miles then travel 8.1mike at a direction of 125 degree. The second reponse tell you to travel 7.5 mile at a bearing of 20 degrees then 5.3miles at a bearing of 100degrees. Which ranger station is closest to your starting position (find the magnitude of the resultant vector of your displacement for each path ) explain each estro of your process,decide which path you will take ,and defend you choice
Mathematics
1 answer:
DENIUS [597]3 years ago
6 0
To find the resultant vector you need to add the horizontal and vertical components of each individual vector.
Cosine for horizontal, Sine for vertical.
v = \ \textless \ |v|cos \theta, |v| sin \theta\ \textgreater \
Where |v| is magnitude or length of vector.
Lets look at first ranger station. First vector has magnitude 4.5 with angle of 90.
Next has magnitude of 8.1 with angle of 125.
F_1 = \ \textless \  4.5 cos(90)+8.1 cos(125) , 4.5 sin(90) + 8.1  sin(125) \  \textgreater \
F_1 = \ \textless \ -4.646, 11.135\ \textgreater \
Find magnitude:
|F_1| =  \sqrt{((-4.646)^2+(11.135)^2} = 12.065
Do the same with 2nd ranger station:
F_2 = \ \textless \  7.5 cos(20) + 5.3 cos(100), 7.5 sin(20) + 5.3 sin(100)\ \textgreater \
F_2 = \ \textless \ 6.127, 7.784\ \textgreater \
|F_2| = \sqrt{(6.127)^2 + (7.784)^2}  = 9.9

Therefore the 2nd ranger station is closest to starting point.

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