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posted by Joey on Wednesday, January 26, 2011 at 8:24am.
At liftoff, a rocket has a mass of 2x10^6 kg. It expels hot gas which provides an upthrust of 3x10^7. Find the initial accelerating of the rocket.
a = F/m = 3*10^7 / 2*10^6 = 15m/s^2.
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