Finding wind velocity and direction from airplane and resultant motion

lia · Oct 26, 2006

The question said that the airplane turned west for 255km/h, and the resultant was 225km/h South 70 degrees West. I have to find the wind direction and velocity. How?

OlderDan · Oct 26, 2006

lia said:

The question said that the airplane turned west for 255km/h, and the resultant was 225km/h South 70 degrees West. I have to find the wind direction and velocity. How?

If v is the velocity of the wind and V is the velocity of the airplane relative to the wind then the resultant R is

R = v + V

where everything in bold is a vector. To find v subract V from both sides of the equation and do the vector subtraction. That is equivalent to adding -V to R. -V is the same length as V but in the opposite direction.

Finding wind velocity and direction from airplane and resultant motion

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