An airplane is flying in horizontal flight with a constant acceleration of 2.00 m/s². The weight of the airplane is 40,000 N. The wings produce a lift force that is perpendicular to the wings and a drag force which is parallel to the wings. The drag force is 2,000 N. The forward thrust force the engine produces is A) 2,800 N. B) 4,000 N. C) 7,500 N. D) 8,000 N. E) 10,200 N.

Question

Quizplus · Accepted Answer

The net force in the horizontal direction is the thrust minus the drag force. Using Newton's second law, F_net = ma, where m = weight/g = 40,000 N / 9.8 m/s² = 4081.63 kg. The net force is 4081.63 kg * 2 m/s² = 8163.26 N. Adding the drag force of 2000 N, the thrust force is 8163.26 N + 2000 N = 10,163.26 N, which rounds to 10,200 N.

An Airplane Is Flying in Horizontal Flight with a Constant