1) A model airplane is flying horizontally due north at 20 mi/ho when it encounters a horizontal crosswind blowing east at 20 myhr and a downdraft blowing vertically downward at 10mi Find the position vector, that represents the velocity of the plane relative to the ground , and the speed of the plane relative to the ground . 2 (up/ down) a+1 20 '+ 20 6(90.)+ 20sin(90 )7+(-10) = 202+204\\-IDK 20 20 ml/hr y(north ) V= resultant vector 20 Position vector that represents the velocity of plane relative to (east) the ground. Ivie speed of plane. relative To the ground 171= (40)2 +1-10)2 7/1360 ~ 41.23 mi/hr