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OpenStudy (anonymous):
A helicopter flies south at 185 km/h relative to the air. The wind is blowing 60.0 km/h to the west compared with the ground. What is the helicopter's speed to an observer on the ground?
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OpenStudy (anonymous):
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OpenStudy (anonymous):
In case you still need help. Did you know that you can use Pythagoras' theorem to add perpendicular vectors, just like with sides of a right-angle triangle?
OpenStudy (anonymous):
Oh okay I didn't know that. :)
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