Thursday

April 17, 2014

April 17, 2014

Posted by **bryan** on Thursday, November 29, 2012 at 12:24am.

_____mi/hr at ____° from due north

- trig -
**Reiny**, Thursday, November 29, 2012 at 8:40amI assume you are studying vectors.

Draw a line at 28° of length 200 (your resultant)

Draw a line at 38° of length 207, join its tail to the first line.

That smaller line will be the vector representing the wind

I see a triangle with sides 200 and 207, with a contained angle of 10°

Let the length of the smaller side be x

by cosine law:

x^2 = 200^2 + 207^2 - 2(200)(207)cos10°

etc.

x will be you speed of the wind, and from your diagram it should be straightforward to find the wind direction

**Related Questions**

trig - A plane is flying with an airspeed of 150 miles per hour and heading 155...

trig - A plane has an airspeed of 190 miles per hour and a heading of 24.0°. The...

trig - an airplane has an airspeed of 430 miles per hour at a bearing of 135 ...

algebra - making linear equation from word problem An airspeed indicator on ...

trig - the horizontal speed of an airplane is 173 miles per hour. the magnitude ...

Trigonometry - A pilot is flying at 200 miles per hour (airspeed), and wants his...

College Algebra - A jet flies from Atlanta to Dubuque a distance of 900 miles. ...

Trig - a boeing 747 jet maintains an airspeed of 650 miles per hours in a ...

pre-cal - a pilot wants to fly on a bearing of 66.4 degrees. by flying due east...

Calculus - An air traffic controller spots 2 planes at the same altitude ...