A 5.010^4 kg space probe is travelling at a speed of 11000 m/s through deep space l.
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A 5.0×10^4 kg space probe is travelling at a speed of 11000 m/s through deep space l. Retrorockets are fired along the line of motion to reduce the probe's speed. The rotrorockets generate a force of over a distance of 2500 km. What is the final speed of the probe (km/s)?
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