RRB RPF RPSF SI and CONS Model Papers 9 with solutions

(3) In jet engines, a large volume of gases produced by the combustion of fuel is allowed to escape through a jet in the backward direction. Due to the very high speed or velocity, the backward rushing gases have a large momentum. They impart and equal and opposite momentum to the jet engine due to which the jet engine moves forward with a great speed. Thus, we can say that the jet engines work on the principle of conservation of linear momentum.