There is something wrong with this vector problem

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Homework Help Overview

The discussion revolves around a vector problem involving the addition of vectors related to an airplane's airspeed and wind speed. Participants are examining the correct approach to resolve the vector components and their resultant direction.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the necessity of separating vectors into horizontal and vertical components before addition. There is a focus on understanding how the wind's direction affects the horizontal component of the vectors involved.

Discussion Status

Some participants have offered guidance on how to correctly approach the problem by suggesting the addition of components rather than subtraction. There appears to be a productive exchange of ideas regarding the setup of the vectors.

Contextual Notes

There is a mention of the original airspeed of the airplane and the wind's contribution to the horizontal component, indicating potential assumptions about the problem setup that are being questioned.

flyingpig
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Homework Statement





[PLAIN]http://img197.imageshack.us/img197/125/unledcxk.png



The Attempt at a Solution



I added the two vectors and took the tangent of it.

I got 37.7 degrees the first time, but it was wrong.

I don't even know why the magnitude is wrong.
 
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what vectors did you add? You have to separate the original vector into horizontal and vertical components. then add the individual horizontal and vertical components.

the wind form the west, does not add or subtract from the vertical component.

A reasonable answer as to ground speed would have to be greater than the original airspeed of the airplane.
 
p = <250\sqrt{2}, 250\sqrt{2}>
w=<-80,0>

p+w =<250\sqrt{2} - 80, 250\sqrt{2}>
 
The wind from the west is moving east.

I think that is the problem here.. the east wind is contributing to the horizontal component you posted. In other words, I think you may want to try adding instead of subtracting.
 
thanks, problem solved lol
 

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