During a trip to Mars, a 1.700×105 kg spaceship travelling at 900. m/s fires its engines for 30.0 s; the graph above shows the thrust force as a function of time. What is the speed of the rocket after the engines shut off? Assume the rocket stays the same mass. 988 m/s 812 m/s 88.2 m/s 900. m/s

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A: GIVEN:

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