A rocket becomes progressively easier to accelerate as it travels upward from the ground mainly because
A)gravity becomes weaker with increased distance.
B)the applied force on the rocket increases as burning of fuel progresses.
C)the mass of the rocket decreases as fuel is burned.

Question

Quizplus · Accepted Answer

As the rocket burns fuel, its mass decreases. This means that the same amount of force applied to the rocket will result in a greater acceleration because the rocket has less mass to move.

A Rocket Becomes Progressively Easier to Accelerate as It Travels