A 48000-kg space probe is traveling at a speed of 12000 ms, Ask an Expert

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A 48000-kg space probe is traveling at a speed of 12000 m/s through deep space. Retrorockets are fired along the line of motion to reduce the probe's speed. The retrorockets generate a force of 160000 N over a distance of 2700 km. What is the final speed of the probe?

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