A jet fighter takes off at an angle of 27.0 degrees w/ the horizontal, accelerating at 2.62 m/s*s. The plane weighs 79,300 N. I need to find the thrust T of the engine on the plane and the lift force L exerted by the air perpendicular to the wings. Thanks My reasoning so far... 79,3000 N / g = 8084 kg. F = ma = 2.62 m/s^2 * 8092 kg -> 21179 N. So I'm thinking that be the thrust. As for the lift force L though, I don't know. Could I use sin or cosine?