|This article does not cite any references or sources. (December 2009)|
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.
See also 
|This classical mechanics-related article is a stub. You can help Wikipedia by expanding it.|