A rocket exists exhaust gases with ρ = 0.5 kg/m3 out a 50 cm diameter nozzle at a velocity of 1200 m/s. The thrust, is

A rocket exists exhaust gases with ρ = 0.5 kg/m3 out a 50 cm diameter

1.	A rocket exists exhaust gases with ρ = 0.5 kg/m3 out a 50 cm diameter nozzle at a velocity of 1200 m/s. The thrust, is
A.	420 kN
B.	280 kN
C.	140 kN
D.	90 kN
E.	70 kN
Answer» D. 90 kN