If a rocket with total mass 2 000 000 kg and an effective fuel velocity of vfuel = 3 000 m/s is to achieve a change in velocity of 10 000 m/s, what mass of fuel must it use? Question 9 options: 6.00 x 105 kg 7.13 x 104 kg 1.40 x 106 kg 1.93 x 106 kg