Recovering speed from one component

Recovering speed from one component

5 marks
TGM Original
A plane flies on bearing 030. Its eastward velocity component is 45 km h-1. Find its speed and northward velocity component exactly.

Solution:

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Answer:\(90\text{ km h}^{-1};\quad45\sqrt3\text{ km h}^{-1}\text{ north}\)

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