A Saturn V Rocket with an Initial Mass M₀ of 3

question 52

Multiple Choice

A Saturn V rocket with an initial mass m₀ of 3 $\times$ 10⁶ kg has a payload that accounts for 27% of this mass,a burn rate of 15 $\times$ 10³ kg/s,and a thrust F_th of 35 $\times$ 10⁶ N.The burn time t_b is

• A)135 s
• B)185 s
• C)209 s
• D)233 s
• E)146 s