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A 4.5 104-kg space probe is traveling at a speed of 15000 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 3.0 105 N over a distance of 2400 km. What is the final speed of the probe?

  • Physics -

    the retrorockets do work (force*distance).

    Intial KE-FinalKE= rocket work

    calculate final KE, then velocity.

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