- Tue Jan 08, 2013 7:07 am
- Forum: Trigonometry
- Topic: vectors: finding the actual speed and direction of aircraft
- Replies:
**3** - Views:
**5904**

I had someone give me the following source: http://en.wikipedia.org/wiki/Airspeed It didn't really help me much though. I see that it said that true airspeed is the speed of the plane relative to the atmosphere. However, if you pick a stationary point of space in the atmosphere, it would seem to be ...

- Sun Jan 06, 2013 12:14 pm
- Forum: Trigonometry
- Topic: vectors: finding the actual speed and direction of aircraft
- Replies:
**3** - Views:
**5904**

My book states the following: A Boeing 737 aircraft maintains a constant airspeed of 500 miles per hour headed due south. The jet stream is 80 miles per hour in the northeasterly direction. Express the velocity v of the 737 relative to the air. Answer: The velocity of the 737 relative to the air is ...

- Sat Jan 05, 2013 3:31 pm
- Forum: Trigonometry
- Topic: Trig: equality of position vectors- confused with definition
- Replies:
**2** - Views:
**2787**

*bump* Nobody?

- Fri Jan 04, 2013 11:35 am
- Forum: Trigonometry
- Topic: Trig: equality of position vectors- confused with definition
- Replies:
**2** - Views:
**2787**

My book states the following: Two position vectors v and w are equal if and only if the terminal point of v is the same as the terminal point of w. This leads to the following result: Theorem: Equality of Vectors Two vectors v and w are equal if and only if their corresponding components are equal. ...

- Wed Jan 02, 2013 11:38 pm
- Forum: Trigonometry
- Topic: Trigonometry - Graphing vectors.
- Replies:
**5** - Views:
**6551**

I'm not sure where the confusion is with my question. I asked whether the length has to be specific. I never asked anything about the angle or slope. I'll ask the question again: Does the new vector line 2v have to be measured specifically when graphing it, Or do I kind of just visualize and guess t...

- Wed Jan 02, 2013 12:50 pm
- Forum: Trigonometry
- Topic: Trigonometry - Graphing vectors.
- Replies:
**5** - Views:
**6551**

My book shows three vectors, v, w, and u, which are illustrated geometrically on a plane. Each of them has their own length (magnitude) and direction. The following operation is performed as an example: 2v + 3w --------------------------------------------------- Is graphing an accurate depiction of ...