ENGINEERING APPLICATION The height that a model rocket
Chapter , Problem 98(choose chapter or problem)
ENGINEERING APPLICATION The height that a model rocket launched from Earths surface can reach can be estimated by assuming that the burn time is short compared to the total flight time; the rocket is therefore in free-fall for most of the flight. (This estimate neglects the burn time in calculations of both time and displacement.) For a model rocket with specific impulse mass ratio and initial thrustto- weight ratio (these parameters are defined in 96 and 97), estimate (a) the height the rocket can reach, and (b) the total flight time. (c) Justify the assumption used in the estimates by comparing the flight time from Part (b) to the time it takes to consume the fuel.
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