Determine the mass ratio (Burnout mass/ Initial mass) of a vehicle in – McqOptions

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1.	Determine the mass ratio (Burnout mass/ Initial mass) of a vehicle in a gravitation less space if its velocity is boosted from 800 m/s to 1600 m/s and the effective rocket exhaust velocity is 2000 m/s.
A.	0.85
B.	0.33
C.	0.67
D.	0.25
Answer» D. 0.25

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