Relative Velocity (Two-Demensional Motion and Vectors)-hw help

AI Thread Summary
The discussion focuses on a physics homework problem involving a research plane flying against a 300 km/h wind in Antarctica. The plane's speed relative to the wind is 450 km/h, and the distance between two research stations is 250 km. Participants express confusion about incorporating time into the equation for relative velocity, specifically the equation Vac = Vab + Vbc. There is uncertainty about how to relate velocity and time in this context, as previous problems did not involve time. The need for additional assistance is emphasized to clarify these concepts.
Tami24
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Homework Statement


George V Coast in Antartica is the windiest place on earth. Wind speeds there can reach 300 km/h. If a reasearch plane flies against the wind with a speed of 450 km/h relative to the wind, how long does it take the plane to fly between two reasearch stations that are 250 km apart?


Homework Equations


It says in our notes we should be using the equation
Vac=Vab+Vbc



The Attempt at a Solution


I don't know what the wind speed is relative to. Also the whole finding time thing is totally throwing me off, because there is no place for time in the equation. I just did a few problems just like this without time in it, and had no problem. But this problem, and the rest of them on my worksheet all use time, and I don't see how that fits into the equation I gave above.
 
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Maybe there are other equations. What does velocity mean? Doesn't it involve time?
 
dlgoff said:
Maybe there are other equations. What does velocity mean? Doesn't it involve time?

Thats true. Although it will make the problem a lot more complicated, I could probably try to solve it now.

More help is needed though =]
 
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