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kq6up
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I have noticed many of the thrust derivations in textbooks I have seen do not do a straightforward derivation of rocket thrust. The all seem to use the same trick with infinitesimals in a sort of binomial form. For reference:
Taylor, "Classical Mechanics" Pg. 85.
I am working on a rigorous and straightforward way of doing this sticking to the assumptions of Newton's 2nd law. That is -- every velocity and acceleration referenced to the lab frame. Then converting over to our known frame for the exhaust as the result is ##F_{thr}=-\dot{m}\mathbf{v}_{er}##. Anyone have a reference using ##\dot{\mathbf{p}}=\sum{\mathbf{F}}## and these assumptions in a straightforward way?
Thanks,
Chris
Taylor, "Classical Mechanics" Pg. 85.
I am working on a rigorous and straightforward way of doing this sticking to the assumptions of Newton's 2nd law. That is -- every velocity and acceleration referenced to the lab frame. Then converting over to our known frame for the exhaust as the result is ##F_{thr}=-\dot{m}\mathbf{v}_{er}##. Anyone have a reference using ##\dot{\mathbf{p}}=\sum{\mathbf{F}}## and these assumptions in a straightforward way?
Thanks,
Chris