Question

Drag loss in a rocket flight is

• A. Loss of velocity due to atmospheric resistance
• B. Energy lost to gravity
• C. Loss due to propellant inefficiency
• D. Loss due to nozzle inefficiency

Hint:

Rocket velocity losses include \[ \boxed{ \begin{aligned} \text{Drag Loss} &\rightarrow \text{Atmospheric Resistance} \text{Gravity Loss} &\rightarrow \text{Work against Gravity} \end{aligned} } \]

Answer 1

The Correct Option is A

Step 1: Recall the meaning of drag loss. During atmospheric flight, a rocket experiences aerodynamic drag. This drag opposes the motion of the rocket.

Step 2: Determine the effect of drag. Because of aerodynamic resistance, \[ \boxed{ \text{part of the rocket's velocity is lost in overcoming drag.} } \] This reduction in attainable velocity is known as drag loss. Therefore, \[ \boxed{\text{Loss of velocity due to atmospheric resistance}} \] is the correct answer. Thus, \[ \boxed{(A)} \] is the correct answer.