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Thrust force of a rocket ejecting mass
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[QUOTE="arildno, post: 4520395, member: 8040"] A very simple version, alon DH's reasoning, is the following: Let us move along with the rocket through a tiny time Dt, in which a little mass Dm has been ejected with a velocity, relative to the rocket, v_e. That little packet of mass has expreniced a momentum change, what we call an impulse, of Dmv_e Impulse equals Dt*F, so the little packet of mass experienced the force: F=v_e*Dm/Dt. Now, by Newton's 3 law, you'll get the result for the thrust force for the rocket! --- [/QUOTE]
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Thrust force of a rocket ejecting mass
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