An Airplane Flies 120 Km at a Constant Altitude in a Direction

question 24

Multiple Choice

An airplane flies 120 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 on the plane by the air?

• A) -2.71 × 10⁸ J
• B) -0.985 × 10⁸ J
• C) -221 × 10⁸ J
• D) 221 × 10⁸ J
• E) 0.821 × 10⁸ J

---

Definitions:

Assumption

An accepted fact or statement taken for granted without proof, often serving as a foundational premise in reasoning or argumentation.

UI

User Interface, the means by which the user and a computer system interact, especially the use of input devices and software.

Simp

In internet slang, a term used derogatorily for someone who is perceived as overly accommodating or submissive to someone they are attracted to, often without reciprocity.

Assumption

A belief or statement taken for granted without proof, often serving as a starting point for further reasoning or argument.