Q. Solve this:
Q.17. During the rocket propulsion, gases ejecting with velocity 1 km/s relative to rocket. The rate of fuel consumption is kg/s, where m is the instantaneous mass of the rocket. If air resistance varies according to equation f = 0.15 mv, then terminal velocity of the rocket is :-
(1) 300 m/s
(2) 600 m/s
(3) 7.92 km/s
(4) 11.2 km/s