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shy9488
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Homework Statement
A person, traveling eastward at a rate of 4.0 km/hr, observes that the wind seems to blow directly from the north; on doubling his speed the wind appears to come from the northeast; determine the direction of the wind and its velocity.
Homework Equations
The Attempt at a Solution
My teacher has actually given us the answers on this question. However, I am stuck at the point where she says the
Velocity of wind relative to person = Velocity of wind relative to the ground - velocity of person relative to the ground.
I just can't understand this at all! Please help!
Thank you in advance!