Question

3, 2, 1 Bottle Rocket Science In a previous 220 ILL each group had launched a 2 L water bottle rocket (with safety goggles being worn at all times) from a high pressure launcher. The rocket was launched straight up to a height h. Students were standing a horizontal distance d from the rocket and measured an angle emax that it rose above the ground. The data is below DATA mbottle 509 mocket = 723.5 g m water = d-22.97m8max33.7 Analysis h1s 32 22.43 tan (33h 15 32 ax.4 2.97 Assume (incorrectly for simplification) that the rocket had a constant upward acceleration for the first 50 cm of ascent, at that height it lost all of its water-fuel. What max speed did the rocket achieve when it reached 50 cm above the launch pad? Vinst at 50 What acceleration did the rocket have for the first 50 cm above the launch pad? 3 Draw a force diagram for the rocket when accelerating upward. Label each vector and include its magnitude. Thrust - What impulse did the rocket have for the first 50 cm of ascent? What impulse did the rocket have for the remaining ascent? h-50 What was the average velocity of the ejected water relative to the rocket? Simplify by treating all of the water that was ejected as one object. Vfuel Research Read the Rocket Science lecture notes along with additional material linked on Canvas. Derive the Rocket Equation starting from dPRocket dPFuel Use the rocket equation to determine how many of your bottle rockets would be needed to lift you into orbit (traveling about 8 km/s), or demonstrate with the equation why it cannot be done. Along with reading the Rocket Science lecture notes along with additional material linked on Canvas. You might enjoy a TED talk on the Tyranny of the Rocket Equation and the article What if: Model Rockets, while doing your research). State any assumptions you make.

Answer 1

Solution:

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