Vector Addition: Calculating Bird's Speed in Southerly Direction

AI Thread Summary
To calculate the bird's resultant speed in the southerly direction, vector addition is used, considering both the bird's speed in still air (50 km/h) and the eastward wind (30 km/h). The correct approach involves applying the Pythagorean theorem to combine these vectors. The resultant speed is not simply the bird's speed, as the wind affects its trajectory. The final calculation shows that the bird's effective speed in the south is approximately 43.6 km/h. Understanding vector components is crucial for accurate results in such scenarios.
cixelsyD
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A bird can manage 50 KmHr-1 in still air. There is a wind blowing eastward at 30kmhr-1, the bird wishes to travel south. The resultant speed the bird carries in the southerly direction is?



For equations i just used vector addition, and pythagorous (A2+B2=C2)



The first time i thought about this problem, i assumed the speed stayed the same, and the bird just got blown of coarse this is in correct though. So i did vector addition, which is obviously wrong as I had to include the southern speed (50kmHr-1).
 
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Vector addition is correct. What vectors are involved, though? One is the air velocity. What other vectors?

Cheers -- sylas
 
Hello..

For some reason I come up with 20km/hr.

Bye.
 
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