[quote=“badazzss,post:462,topic:37377"”]
is pulling on the rope actually the same as the engine’s thrust against the air though?
i think they’re slightly different… not really comparable…
[/quote]
yes the rope can be looked at as the engine’s thrust, because like a jet engine, the rope allows a FORCE to be applied on a body that’s completely independent of any surface that the body might be riding on.