a plane is flying with a constant speed along a straight line at an angle of 60degree with the horizontal.the weight W of the plane is 90,000N and its engine provides a thrust Tof 120,000N in the direction of flight. Two additional forces are exerted on the plane :the lift force F perpendicular to the plane's wings ,and the force R due to air resistance oppposite to the direction of motion.Draw the free body diagram showing all the forces on the plane.Determine F and R.