A rocket of initial mass 6000kg ejects mass at a constant rate of 16kg/s with constant relative speed of 11km/s. what is the acceleration of rocket 2 min. after blast?
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vr=11km/s=11000m/s
Thrust force on rocket is F=vr*dm/dt
F=11000×16=17600N
Mass of rocket after one minute
M=6000−16×60=5040kg
Acceleration of rocket is a=F/M=17600/5040=34.92m/s2
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