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    Rocket Physics Launching Force

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    A 1 Kg rocket is launched upwards with a force of 9.8N. What happens to this rocket ?
    g = 9.8 m/s^2

    A) Never takes off the ground
    B) Lifts of at a constant velocity
    C) Accelerates initially and then drops down
    D) Other
    E) What would happen at greater accelerations

    Your detailed thoughts please!

    © BrainMass Inc. brainmass.com March 4, 2021, 10:47 pm ad1c9bdddf

    Solution Preview

    Hello and thank you for posting your question to Brainmass.

    Before the launch
    The gravitational force on the rocket is a constant force pointing down. The only thing that stops the rocket from from moving down is the force exerted on the rocket by the ground (Newton's third law). This force applied by the ground is there as long as the rocket pushes on the ground.
    Hence the before the launch the rocket is standing still.

    The Launch
    Now we apply on the rocket a force ...

    Solution Summary

    The expert examines rocket physics launching forces.