An Airplane Is Flying in Horizontal Flight with a Constant

Multiple Choice

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.