Question

what is the motion of the rocket with? reference to unbalanced forces

Answer 1

An unbalanced force must be exerted for a rocket to lift off from a launch pad or for a craft in space to change speed or direction (first law). The reaction, or motion, of the rocket is equal to and in the opposite direction of the action, or thrust, from the engine (third law).

Answer 2

Answer:

An unbalanced force must be exerted for a rocket to lift off from a launch pad or for a craft in space to change speed or direction (first law). ... The reaction, or motion, of the rocket is equal to and in the opposite direction of the action, or thrust, from the engine (third law).

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