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A 1560 rocket is to be launched with an initial upward speed of 53.0 . In order to assist its engines, the engineers will start it from rest on a ramp that rises 53 above the horizontal (the figure ). At the bottom, the ramp turns upward and launches the rocket vertically. The engines provide a constant forward thrust of 2000 , and friction with the ramp surface is a constant 500 .

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    MPH, FPS, M/S, lbs, kg, ????

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    23.4

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