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1. |
The on-board rocket motor of a satellite of initial mass 2000 kg provides a specific impulse of 280 seconds. If this motor is fired to give a speed increment of 500 m/s along the direction of motion, the mass of propellant consumed is: |
A. | 685 kg |
B. | 333 Kg |
C. | 1666Kg |
D. | 167Kg |
Answer» C. 1666Kg | |