A few days ago
is anyone a precalculus wiz? cuz i need help.?
What’s the answer?
An airplane flies at a speed of 840mph in a bearing of North West 53 degrees. There is a Due Easterly wind blowing at 30 mph. Find the plane’s new speed and bearing.
Top 2 Answers
A few days ago
Favorite Answer
I hope your teacher isn’t stupid enough to give credit for an answer versus for showing your work…
solve it using vectors and triangles… draw a diagram… for bearing you need some idea of time passed… for speed draw a line that is falls in the fourth quadrant for the airplane’s motion and along the line y=0 for the wind. The angle between them is 143 degrees and the length are the speeds (840 and 30 respectively) from there you just need to use the law of cosines to calculate speed. Once you know the speed, multiply it times the time and add that to the original bearings to calculate the new bearings… that’s pretty much it
1
A few days ago
Draw a vector representing the planes speed and direction, then draw another vector representing the wind speed and direction. Add the vectors together, and you will have your answer.
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