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A Rocket Is Launched Vertically from Rest; and It Burns

Question 39

Multiple Choice

A rocket is launched vertically from rest; and it burns fuel at a constant rate of 136 kg/s. Exhaust gases are expelled with a speed of 5.25 × 103 m/s relative to the rocket. What is the magnitude of the thrust?


A) 7.14 × 105 N
B) 3.64 × 106 N
C) 2.59 × 10-2 N
D) 808 N
E) 38.6 N

Correct Answer:

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