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23 Nov 2019
A model rocket engine has an average thrust of 5.26 N. It has aninitial mass of 25.5 g, which includes fuel mass of 12.7 g. Theduration of its burn is 1.90 s.
(a) What is the average exhaust speed of the engine?
(b) This engine is placed in a rocket body of mass 53.5 g. What isthe final velocity of the rocket if it were to be fired from restin outer space by an astronaut on a spacewalk? Assume the fuelburns at a constant rate.
A model rocket engine has an average thrust of 5.26 N. It has aninitial mass of 25.5 g, which includes fuel mass of 12.7 g. Theduration of its burn is 1.90 s.
(a) What is the average exhaust speed of the engine?
(b) This engine is placed in a rocket body of mass 53.5 g. What isthe final velocity of the rocket if it were to be fired from restin outer space by an astronaut on a spacewalk? Assume the fuelburns at a constant rate.
Reid WolffLv2
13 Jul 2019
