Question

A 6000 kg rocket is set for firing if the exhaust speed is 1000 m/s How much gas must be ejected each second to supply the thrust needed to overcome the weight of rocket

Answer 1

F = v×dm/dt
mg = v×dm/dt. (F=mg)
6000×10 = 1000×dm/dt
dm/dt = 60000/1000 = 60 kg/s

Answer 2

Hi friend,

For thrust force,

F= v dm/dt

(F=mg)

mg =v dm/dtdt

6000×10=1000 dm/dt

dm/dt =60 kg/s.

Hope this helped you a little!!!!