A model rocket engine consists of an average thrust of 5.26 N. It consists of an initial mass of 25.9 g, which comprises fuel mass of 13.5 g. The period of its burn is around 1.90 s. (Suppose that all the fuel is consumed.)
(i) Determine the average exhaust speed of the engine?
(ii) This engine is positioned in a rocket body of mass 64.0 g. Determine the magnitude of the final velocity of the rocket when it were to be fired from rest in outer space through an astronaut on a spacewalk? Suppose the fuel burns at a constant rate.