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15. A six-passenger business jet reaches a velocity of 450 km/h [E] shortly after take-off, at time t. What will be the velocity of the

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15. A six-passenger business jet reaches a velocity of 450 km/h [E] shortly after take-off, at time t. What will be the velocity of the jet a few minutes before it lands if it has *7 of the momentum it had at time t, and has lost / of its mass due to fuel consumption? a. 643 km/h [E] c. 154 km/h [E] b. 473 km/h [E] d. 429 km/h [E]

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