SOLUTION: Wind is coming in at 80 km/h from the east and a plane is capable of travelling 200 km/h. What is the relative velocity to the ground if the plane is travelling North?

Question 275681: Wind is coming in at 80 km/h from the east and a plane is capable of travelling 200 km/h. What is the relative velocity to the ground if the plane is travelling North?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Wind is coming in at 80 km/h from the east and a plane is capable of travelling 200 km/h. What is the relative velocity to the ground if the plane is travelling North?
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I'll assume the plane is heading north. If its ground track is north, it's a different problem.
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The groundspeed is the hypotenuse
r = sqrt(200^2 + 80^2) = sqrt(46400)
r =~ 215.4 km/hr

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