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Thanks for a nicely presented first question. First you need a model for the equation of state for the tank. Given the initial conditions, develop formulas that yield static pressure, temperature, work, etc as a function of the mass remaining in the tank. (You need at least one fully defined state point for the tank, I'm assuming it's the initial condition). ...


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At 1.6[m/s] the Air resistance is negligible so I would dismiss that term. However, a word of caution: Rolling resistance Force is not the same as friction force if you are using wheels. I would point you to the following page for a rough estimation of Rolling resistance. The other factors that might come into play are negligible compared to what you have ...


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