hey guys i just found this site and its very helpful. so if u guys can help. it will be greatly appreciated i have this problem to solve but i stuck on solveing for the height of the airplane to find the force. so if anyone can assist me it will be great. thanks Lift on an Airplane. Air streams horizontally past a small airplane's wings such that the speed is 75. over the top surface and 58.5 past the bottom surface. If the plane has mass 1250 and a wing area of 14.9 , what is the net vertical force (including the effects of gravity) on the airplane? The density of the air is 1.2 . Take the free fall acceleration to be 9.8 . find force in N.