0 votes
70 views
asked in PPE by (215k points)
The effective jet exit velocity from a rocket is2700 m/s. the forward flight velocity is 1350 m/s. the propulsive efficiency of the units is     

(a)200%                       (b)100%

(c) 66.666%                 (d)33.333%

Please log in or register to answer this question.

Welcome to Q&A discussion forum, where you can ask questions and receive answers from other members of the community.

10.4k questions

274 answers

26 comments

14.6k users

...