Yes captain!

You navigate your airplane. Speed of airplane relative on the air $$v_{1} = 400 \text{ hmh}^{-1}$$. The wind is blowing from north-east to south-west with a speed $$v_{2} = 50 \text{ hmh}^{-1}$$. In what way you need to set a course of flying in order to fly fro south to north? Also, what is the speed of your plane relative to earth?

Note: speed! Also use decimals and round to hundredth decimal.

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