6a A plane of mass 150000 kg is flying through the air at a constant altitude at a speed of 250 m/s. The plane has a wingspan of 60 m. What lift force must the wings provide? Please provide your answer in N. 1470000 3 20. 6b Assuming the air density is 0.0040 kg/m and the drag coefficient is 0.47, what thrust force must the engines provide? You may approximate the plane as a sphere of diameter 60 m