## Question:

A 30.000 lb airplane is flying on a horizontal trajectory with a speed ${ \upsilon }_{ 0 }$ = 650 mph when, at point A, it maneuvers so that at point B it is set on a steady climb with $\theta =40°$and a speed of 600 mph. Assuming that the change in mass of the plane between A and B is negligible, determine the impulse that had to be exerted on the plane in going from A to B.