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Physics 211 Lecture 17: Rocket Propulsion

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Physics 211 Lecture 17: Rocket Propulsion

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    1. 1 Physics 211 – Lecture 17: Rocket Propulsion

    2. 2 Rocket Calculus – Take an infinitesimal amount of fuel

    3. 3 Example: Ch9 # 50 C5 model rocket engine has avg thrust of 5.26N, initial mass 25.5g, fuel mass 12.7g, and burn time 1.9s. Place engine in 53.5g rocket. a) Find avg exhaust speed. b) Find final speed if fired in outer space c) Find speed at end of burn if fired vertically on earth

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