Final answer:
The speed of the exhaust gas relative to the rocket can be calculated by subtracting the rocket's velocity from the velocity of the exhaust gases. The exhaust gas speed is always greater than the rocket's speed as the rocket's speed increases due to the conservation of momentum.
Step-by-step explanation:
The speed of the exhaust gas relative to the rocket can be calculated by subtracting the rocket's velocity from the velocity of the exhaust gases.
For example, if the rocket is traveling at 500 m/s and the exhaust gases are expelled at a velocity of 1000 m/s, then the speed of the exhaust gas relative to the rocket would be 1000 m/s - 500 m/s = 500 m/s.
The exhaust gas speed is always greater than the rocket's speed as the rocket's speed increases due to the conservation of momentum.