The rocket equation describes how a vehicle's final speed depends on
A) its mass
B) the propellant's velocity
C) the type of the fuel used
D) its aerodynamic shape

Question

Quizplus · Accepted Answer

The rocket equation, also known as the Tsiolkovsky rocket equation, states that the final velocity of a rocket depends on the velocity of the propellant it expels from its engines. This is represented by the variable known as exhaust velocity. The equation includes terms for the initial mass of the rocket and the mass of the propellant, but the propellant's velocity (choice B) is the most important factor in determining the rocket's final speed.

The Rocket Equation Describes How a Vehicle's Final Speed Depends