An Airplane Flies 160 Km at a Constant Altitude in a Direction

Multiple Choice

An airplane flies 160 km at a constant altitude in a direction 30.0° north of east. A wind is blowing that results in a net horizontal force on the plane due to the air of 2.40 kN in a direction 10.0° south of west. How much work is done by the air on the plane?

A) -3.61 × 10⁸ J
B) -1.31 × 10⁸ J
C) -2.94 × 10⁸ J
D) 2.94 × 10⁸ J
E) 1.15 × 10⁸ J