The jet force is a rocket-like force due to Newton's third law which states that for every action there is an equal and opposite reaction. The backward moving exhaust of a burning fuel pushes a rocket or jet forward. It means that throwing a brick off the back of a child's wagon also would push the wagon forward.
Famous quotes containing the words jet and/or force:
“Gimme the Plaza, the jet and $150 million, too.”
—Headline, New York Post (Feb. 13, 1990)
“I was not long since in a company where I wot not who of my fraternity brought news of a kind of pills, by true account, composed of a hundred and odd several ingredients; whereat we laughed very heartily, and made ourselves good sport; for what rock so hard were able to resist the shock or withstand the force of so thick and numerous a battery?”
—Michel de Montaigne (1533–1592)