 
			 
			MCQOPTIONS
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				| 1. | A spacecraft of mass 2000 kg moving with a velocity of 600 m/s suddenly explodes into two pieces. One piece of mass 500 kg is left stationary. The velocity of the other part must be (in m/s) | 
| A. | 1000 | 
| B. | 600 | 
| C. | 800 | 
| D. | 1500 | 
| Answer» D. 1500 | |