1.

A rocket of initial mass 6000 kg ejects mass at a constant rate of 16 kg/sec with constant relative speed of 11 km/sec. What is the acceleration of the rocket a minute after the blast? (Neglect gravity)

A. \[\text{28}.\text{7 m}/{{\text{s}}^{\text{2}}}\]         
B.         \[\text{34}.\text{9 m}/{{\text{s}}^{\text{2}}}\]  
C. \[\text{39}.\text{4 m}/{{\text{s}}^{\text{2}}}\]         
D.         \[\text{27}.\text{8 m}/{{\text{s}}^{\text{2}}}\]
Answer» C. \[\text{39}.\text{4 m}/{{\text{s}}^{\text{2}}}\]         


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