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For a vehicle in gravitationless space, determine the mass ratio necessary to boost the vehicle velocity by (a) 1600 m/sec and (b) 3400 m/sec; the effective exhaust velocity is 2000 m/sec. If the initial total vehicle mass is 4000 kg, what are the corresponding propellant masses?
2. Determine the burnout velocity and burnout altitude for a dragless projectile with the following parameters for a simplified vertical trajectory: 
= 2209 m/sec; mp /m0 = 0.57;tp = 5.0 sec; and u0 = 0; h0 = 0. Select a relatively small diameter missile with L/D of 10 and an average vehicle density of 1200 kg/m3.
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