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


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