Due to internal combustion inside a rocket, gases are ejected at the rate of 2.4 kg/minute. The velocity of the gases with respect to the rocket is 400 m/s. Calculate force exerted on the rocket

Rate of change of mass = (dm/dt) =  2.4kg/minute = (2.4/60) kg/sec = 0.04 kg/sec

Force= Rate of change of momentum =v(dm/dt) + m(dv/dt).

= 400(0.04) + Mass of rocket(0) = 16N

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